A narrative synthesis of the Hillsdale College Online Course “Ancient Christianity,” Lectures 2–11, expanded and corroborated with primary sources from the Church Fathers and classical historians.
✦ ✦ ✦
Introduction: The Most Audacious Claim in History
Imagine standing in the Roman Forum in the first century and announcing to the crowd that the Creator of the universe, the uncaused source of all being, had recently been born to a peasant girl in an obscure Judean village, had grown up as a craftsman, had been executed by a Roman governor as a would-be king, and had walked out of His tomb three days later. Few messages could have sounded more preposterous to the ancient ear. The Greeks were sophisticated, and the Romans were deeply religious, but neither people had any category for a God who would enter His own creation as an infant, suffer, and die.
Yet within three centuries that very message had crossed the Mediterranean, penetrated the imperial household, survived the most systematic persecutions the ancient world could devise, and claimed the allegiance of an emperor. When the western half of Rome finally collapsed, it was the Church that preserved the memory of civilization and planted the seeds of its rebirth. The story of how this happened is the subject of Hillsdale College’s course on Ancient Christianity, and it is among the most remarkable narratives in human history.
What follows is a narrative synthesis of that course, from its account of the world that prepared the way for Christ through the age of Augustine. Along the way, the testimony of the ancient Christians themselves and of their pagan observers has been added so that the reader may hear the voices of those who lived it. Where the course’s outline simplifies or misstates a historical detail, the matter is noted at the end in a brief section on points of historical precision.
In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made by him; and without him was not any thing made that was made. … And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.
— John 1:1–3, 14 (King James Version)
✦ ✦ ✦
Part One: The Message and Its Preparation
The Gospel Confronts the Ancient World
The central assertion of both Testaments is that God has not remained hidden. He has spoken through the patriarchs and prophets, and He has finally spoken through His Son. The Incarnation, the eternal God taking on human flesh, is the climax of that self-disclosure. The challenge that faced the earliest believers was not merely to repeat this claim but to make it intelligible to a Greco-Roman world that had no framework for it.
The pagans of the empire were not irreligious. Their cities were crowded with temples, their calendars full of festivals, and their public life saturated with sacrifice. The difficulty lay elsewhere. Pagan religion was polytheistic and transactional; its gods were powerful but finite, and its philosophers spoke of a supreme principle that was remote, impassible, and utterly beyond suffering. To such minds the idea of one exclusive God was strange, and the idea of that God becoming a man who could die was nearly unthinkable.
Three Streams That Prepared the Way
The course identifies three great inheritances of the ancient world that, in the providence of God, prepared the soil for the Gospel. Judaism supplied the historical foundation, the conviction that there is only one God, and the promise of a coming Messiah. Greek culture and philosophy supplied the vocabulary and conceptual tools by which Christians could explain what they believed. The Roman Empire supplied the unity, roads, and relative peace that allowed the message to travel from Jerusalem to the ends of the known world. The apostle Paul summarized this convergence when he wrote that God sent forth His Son “when the fulness of the time was come” (Galatians 4:4).
The Jewish Foundation
It was Israel that introduced the Mediterranean world to monotheism in its uncompromising form. Scattered through the cities of the empire, Jewish communities bore witness to a God who made heaven and earth and who would not share His glory with idols. Israel also carried a salvation history, a long narrative of creation, fall, covenant, exile, and promise that pointed toward a deliverer who would come to save not only Israel but the nations.
The Hebrew Scriptures also contain a remarkable series of miraculous or unexpected births, from Isaac born to the aged Sarah, to Samson, to Samuel granted to the barren Hannah. Each foreshadowed the far greater wonder announced by Isaiah, that a virgin would conceive and bear a son called Immanuel, “God with us” (Isaiah 7:14), and that a child would be born who would bear the titles “Mighty God” and “Everlasting Father” (Isaiah 9:6).
The Greek Vocabulary
Alexander the Great’s conquests had carried Greek language and learning across the eastern Mediterranean, and Greek philosophy remained fashionable among educated Romans. Christians therefore faced a delicate task: to employ Greek thought in the service of the faith without allowing the faith to dissolve into Greek paganism.
Two words proved especially valuable. The first was logos, which can mean word, reason, or rational discourse, but which in Greek philosophy also denoted the ordering principle that brings rationality and unity to the cosmos. The Gospel of John seized this term and transformed it: the Logos is not an impersonal force but a Person who was with God, who was God, and who became flesh. The second was ousia, meaning substance or essence, which would later become central to the Church’s confession that the Son is of one substance with the Father.
Platonism in particular had accustomed many to the idea of a transcendent deity. Yet the differences between the god of the philosophers and the God of the Bible were profound. Plato’s Demiurge shaped a material world that already existed; the Christian God created everything, matter included, out of nothing. Platonists could not accept that the transcendent One would become a man, and Stoics could not accept a God who loved, wept, and died on a cross. The second-century apologist Justin Martyr nonetheless saw in philosophy a genuine, if partial, preparation for Christ.
Whatever things were rightly said among all men, are the property of us Christians. For next to God, we worship and love the Word who is from the unbegotten and ineffable God, since also He became man for our sakes, that, becoming a partaker of our sufferings, He might also bring us healing.
— Justin Martyr, Second Apology, ch. 13
https://www.newadvent.org/fathers/0127.htm
The Roman Order
Rome had unified the Mediterranean during the Republic, but Caesar Augustus brought peace out of the chaos of civil war that ended it. To many Romans he appeared as a kind of savior. He styled himself princeps, “first citizen,” to preserve the appearance of republican government, while also serving as pontifex maximus, the chief priest of Roman religion. During his reign, the cult of the emperor’s genius, his indwelling divine spirit, took root. The result was a striking historical juxtaposition: in the same reign, two figures were proclaimed divine. One ruled from the imperial palace with legions at his command; the other was born to a poor family and laid in a manger in Bethlehem.
✦ ✦ ✦
Part Two: The World Before Christ
Exile and Return
Israel’s history is a recurring cycle of faithfulness, apostasy, judgment, and restoration. Because of their unfaithfulness, the Israelites lost the land God had promised them. The Assyrians destroyed the northern kingdom in 722 BC, and Nebuchadnezzar’s Neo-Babylonian armies conquered Judah and destroyed Jerusalem in 586 BC. When Cyrus the Great of Persia overthrew Babylon, he permitted the exiles to return, and under leaders such as Ezra and Nehemiah, the Jewish community rebuilt its temple and walls.
The Hellenization of the Jews
Around 332 BC, Alexander the Great swept through the eastern Mediterranean, and in his wake Greek culture spread to every major city. Jews migrated widely and formed large communities in Hellenized centers such as Alexandria. The encounter was fruitful in many ways. According to tradition, Ptolemy II commissioned a Greek translation of the Hebrew Scriptures for the great library of Alexandria; this Septuagint became the Bible of the Greek-speaking synagogue and later of the early Church. Jewish thinkers studied Greek philosophy and poetry, and Greek customs, including attendance at the gymnasium, spread among the Jewish population.
Yet the encounter also produced tension. Many devout Jews feared that the allure of Greek culture was eroding loyalty to the covenant and to the ancestral traditions that distinguished them from the nations.
The Maccabean Revolt
Alexander himself had treated the Jews with relative respect, but his successors were less sensitive. After his empire fractured, two great powers emerged in the region: the Ptolemies in Egypt and the Seleucids in Asia. Under the Seleucid king Antiochus IV Epiphanes, the conflict reached a breaking point. Antiochus sought to impose pagan worship, set up an altar to Zeus in the Jerusalem temple, and demanded that Jews sacrifice to the Greek gods. Some young Jewish men who frequented the gymnasium even attempted to disguise their circumcision, a repudiation of the covenant sign itself.
Around 167 BC, the priest Mattathias and his sons, the family later called the Hasmoneans, raised the standard of revolt. Led by Judas Maccabeus, the rebels recaptured Jerusalem and rededicated the temple in 164 BC, an event commemorated in the festival of Hanukkah, whose later rabbinic tradition remembers a single cruse of oil that burned for eight days. The Maccabees first won religious autonomy within the Seleucid realm and eventually established the independent Hasmonean kingdom, the last fully sovereign Jewish state in the land until the founding of modern Israel in 1948.
Judaism Under Rome
In 63 BC, the Roman general Pompey entered Judea and brought it under Roman control. The repeated loss of independence fueled the rise of several parties within Judaism, each seeking faithfulness to the Torah in its own way. The Sadducees, associated with the priestly aristocracy, claimed descent from the legitimate high priesthood. The Pharisees are often caricatured as legalists without love, but their zeal to fence the Law was rooted in a desire never again to be driven from the land. The Essenes withdrew into quasi-monastic communities, separating themselves from what they regarded as a corrupt religious establishment and preparing for the coming Messiah through an even stricter observance.
Around 40 BC, Rome appointed Herod the Great king of Judea. Herod defended Roman interests against the Parthian Empire to the east, driving Parthian forces from the region by 38 BC. The course suggests that the Magi who later arrived at Herod’s court seeking a newborn king may have been emissaries from Parthia, Herod’s old enemy, which would help explain the king’s alarm.
Roman officials frequently misunderstood Jewish religion, provoking unrest through their treatment of the temple and its treasury. Under the emperor Caligula, violent persecution of Jews broke out in Alexandria, and the emperor resolved to place a statue of himself in the Jerusalem temple. A Jewish delegation led by the philosopher Philo of Alexandria pleaded with him without success. Only Caligula’s assassination by his own Praetorian Guard in AD 41 averted catastrophe.
Nero and the First Imperial Persecution
In AD 64, a great fire devastated Rome. Thousands perished, and much of the city was destroyed. Nero, who had grand plans to rebuild the capital on a lavish scale, was widely suspected of having started it. To deflect suspicion, he blamed the Christians, a group that Romans already distrusted. The Romans understood that this new sect had emerged from Judaism but could not grasp the relationship or the reasons for the split. Nero’s persecution was savage, and tradition holds that both Peter and Paul died in Rome during this period. The historian Tacitus, no friend of the Christians, preserves the most vivid account.
Consequently, to get rid of the report, Nero fastened the guilt and inflicted the most exquisite tortures on a class hated for their abominations, called Christians by the populace. Christus, from whom the name had its origin, suffered the extreme penalty during the reign of Tiberius at the hands of one of our procurators, Pontius Pilatus.
— Tacitus, Annals 15.44 (trans. Church and Brodribb)
https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.02.0078:book=15:chapter=44
Tacitus goes on to report that Christians were convicted less for arson than for “hatred of the human race.” Because they refused to sacrifice to the gods, Romans regarded them as atheists and enemies of the social order, an accusation that would shadow the Church for the next two and a half centuries.
✦ ✦ ✦
Part Three: The Life of Jesus
Who Is Jesus?
Jesus of Nazareth defies every ready-made category. He fulfilled the Jewish hope of the Messiah, yet many who longed for the Messiah did not recognize Him because He did not match their expectations. He was God incarnate, yet Greek philosophy recoiled at the thought that the divine could become human. He was born as a baby to Mary, a fact that would later lead Christians into searching reflection on the beginning of human life and on Mary’s unique role. Despite their distinct perspectives, all four Gospels present a Jesus who understood Himself to be divine.
Jesus in the Roman World
The Gospel narratives are deeply embedded in the political realities of the Roman world. The Magi presented gold, frankincense, and myrrh, the kind of gifts that passed between royalty. Herod, threatened by any rival claimant to the throne, ordered the slaughter of the male children of Bethlehem two years old and under. Joseph fled with Mary and the child into Egypt, fulfilling the prophetic word, “Out of Egypt have I called my son” (Hosea 11:1; Matthew 2:15). The course draws attention to a subtle detail: because Egypt and Judea were both within Rome’s orbit, the family could leave Herod’s jurisdiction without crossing a hostile frontier, a small illustration of how the Roman order had prepared the world for Christ.
At the crucifixion, the charge placed above Jesus read “King of the Jews,” written in Hebrew, Greek, and Latin (John 19:19–20). The three languages represented the religious, cultural, and political authorities of the Roman world, and each regarded Him as a rebel king. Jesus was not executed for healing the sick or teaching love of neighbor. He was executed because He spoke with unprecedented authority, because crowds sought to make Him king, and because the Jewish leadership feared that His movement might provoke Roman reprisal and perhaps another exile.
Three Trials, One Verdict
Jesus was condemned by every level of authority in Judea. The Sanhedrin, the council of priests and elders entrusted by Rome with religious discipline, judged Him guilty of blasphemy. Herod Antipas, tetrarch of Galilee and present in Jerusalem for Passover, mocked Him. Pontius Pilate, the Roman prefect, found no political threat in a man who declared that His kingdom was not of this world, but he yielded to pressure. Offered the release of a prisoner, the crowd chose Barabbas, likely a revolutionary and would-be messiah, over Jesus. Jesus was crucified between two men who were probably insurrectionists.
Death, Resurrection, and Ascension
As Jesus died, Roman onlookers mocked His cries, for they could not imagine a god who suffered and called out in agony. But the Christian story does not end at the cross. The Gospels proclaim His bodily resurrection and ascension, and these claims became some of the hardest for the ancient world to accept. Jewish authorities disputed the resurrection, while Platonists could not conceive how flesh and blood could enter the heavenly realm. Yet it was precisely the resurrection that the apostles preached as the foundation of the faith: “if Christ be not raised, your faith is vain” (1 Corinthians 15:17).
✦ ✦ ✦
Part Four: Apostles, Creeds, and Scripture
The Apostolic Mission
After the resurrection, the disciples carried the Gospel outward from Jerusalem. Ancient tradition sends Thomas eastward toward Persia and India, Mark to Alexandria, and both Peter and Paul to Rome. The arrival of the Gospel in the imperial capital signified that Christianity was not a tribal faith but a message for all nations. By the end of the first century, the four Gospels had been written, sacred sites associated with Christ’s life were being remembered, and the apostles had produced letters to correct, encourage, and instruct the young churches. Peter, Paul, and John alike emphasize the person of Christ, the reality of His Incarnation, and the unity of believers in Him.
An early Christian writer, in the anonymous Epistle to Diognetus, captured the paradoxical identity of these first believers as citizens of earth and heaven at once.
They dwell in their own countries, but simply as sojourners. As citizens, they share in all things with others, and yet endure all things as if foreigners. Every foreign land is to them as their native country, and every land of their birth as a land of strangers.
— Epistle to Diognetus, ch. 5
https://www.newadvent.org/fathers/0101.htm
The Role of Creeds
In a largely illiterate population, few believers could read the Scriptures for themselves. Creeds, brief statements of faith that could be memorized and recited, therefore served a vital function. They allowed the essentials of the Gospel to travel quickly and served as a safeguard against false teaching. By the late second century, an early form of what would become the Apostles’ Creed functioned as the “rule of faith,” the summary of doctrine handed down from the apostles.
The apostles’ disciples served as bishops, from the Greek episkopos, “overseer,” charged with preserving faithful teaching and the unity of the churches. Clement of Rome was associated with Peter and Paul, and Polycarp of Smyrna was remembered as a disciple of the apostle John, as Ignatius of Antioch was by later tradition.
Heresies and Schisms
The most consequential early disputes concerned the meaning of the Incarnation. The Ebionites denied that Jesus was divine, regarding Him as a human prophet. The Docetists, part of the wider Gnostic movement, denied that He had a real physical body. The Gnostics more broadly despised the material world as the creation of an inferior or evil deity and denied that God had truly become man; some even taught that Jesus did not die on the cross but substituted Simon of Cyrene in His place as a jest against the creator god. Against these errors Ignatius of Antioch, writing on his way to martyrdom, insisted on the reality of Christ’s flesh and its presence in the Eucharist.
They abstain from the Eucharist and from prayer, because they confess not the Eucharist to be the flesh of our Saviour Jesus Christ, which suffered for our sins, and which the Father, of His goodness, raised up again.
— Ignatius of Antioch, Epistle to the Smyrnaeans, ch. 7
https://www.newadvent.org/fathers/0109.htm
Schismatic movements also arose. Montanus claimed that he and his prophetesses spoke by the Holy Spirit with an authority surpassing the apostolic tradition, and his followers actively courted martyrdom, contrary to the Church’s teaching that martyrdom should be accepted but not sought. Even within Rome, controversy broke out over discipline. Hippolytus accused Bishop Callistus of excessive leniency toward converts from the Roman elite. Remarkably, both men were later exiled together to the mines of Sardinia, where tradition holds that they were reconciled before dying as martyrs.
The Formation of the Canon
As they contended with error, church leaders also sorted through the many writings that circulated among Christians. Marcion, who taught that the God of the Old Testament was a lesser and harsh deity distinct from the Father of Jesus, assembled one of the first canons, consisting of an edited Luke and ten Pauline letters. In response, Irenaeus of Lyons, a disciple of Polycarp, defended the fourfold Gospel as the Church had received it.
It is not possible that the Gospels can be either more or fewer in number than they are. For, since there are four zones of the world in which we live, and four principal winds, while the Church is scattered throughout all the world, and the “pillar and ground” of the Church is the Gospel and the spirit of life; it is fitting that she should have four pillars.
— Irenaeus of Lyons, Against Heresies 3.11.8
https://www.newadvent.org/fathers/0103311.htm
The Church’s criteria for recognizing canonical writings were, in essence, four: early origin in the apostolic age, connection with an apostle, widespread use across the churches, and consistency with the received rule of faith.
The Martyrdom of Polycarp
All of this unfolded under the shadow of persecution. Polycarp, the aged bishop of Smyrna, was arrested around AD 155 and brought before the proconsul in the arena. Urged to swear by Caesar and cry “Away with the atheists,” he turned and gestured at the pagan crowd, calling them the true atheists. When pressed to revile Christ, he gave one of the most celebrated answers in Christian history.
Eighty and six years have I served Him, and He never did me any injury: how then can I blaspheme my King and my Saviour?
— Martyrdom of Polycarp, ch. 9
https://www.newadvent.org/fathers/0102.htm
✦ ✦ ✦
Part Five: The Rise of Roman Persecution
Local Persecutions and Popular Slander
Jesus had warned His followers that the world would hate them as it had hated Him, but He also promised that the gates of hell would not prevail against His Church (Matthew 16:18). The course makes a perceptive observation: gates are defensive structures. Christ envisioned His Church on the offensive, advancing through evangelism against the strongholds of darkness.
Roman hostility had cultural and religious roots. Christians refused to join pagan festivals or offer sacrifice, and were therefore branded atheists and disloyal citizens. Romans respected ancient traditions, but they viewed Christianity as a novel cult cut off from its Jewish parent. Garbled rumors of the Eucharist and the “holy kiss” fueled charges of cannibalism and incest.
For much of the second century, persecution remained local and sporadic, driven by provincial governors and mob sentiment. The famous correspondence between Pliny the Younger, governor of Bithynia, and the emperor Trajan, around AD 112, reveals both the innocence of ordinary believers and the official confusion about how to treat them.
They affirmed, however, the whole of their guilt, or their error, was, that they were in the habit of meeting on a certain fixed day before it was light, when they sang in alternate verses a hymn to Christ, as to a god, and bound themselves by a solemn oath, not to any wicked deeds, but never to commit any fraud, theft or adultery, never to falsify their word, nor deny a trust when they should be called upon to deliver it up.
— Pliny the Younger, Letters 10.96
https://sourcebooks.fordham.edu/source/pliny1.asp
Trajan’s reply established an uneasy policy: Christians were not to be hunted down, but if accused and convicted, they were to be punished unless they recanted by worshiping the gods. Intellectual opposition also emerged. The Platonist Celsus ridiculed the Incarnation and argued that Christians, by refusing the gods their due, were defaulting on a kind of rent owed to the divine patrons of Rome’s prosperity.
The Christian Apologists
The second century produced a generation of apologists who offered a reasoned defense of the faith. Justin of Neapolis, later known as Justin Martyr, was drawn to Christianity in part by the courage of believers facing death. To Jews, he argued that Jesus was the promised Messiah, present throughout the Old Testament. To Greeks, he argued that the best of philosophy pointed toward Christ. To Romans, he insisted that Christians were model citizens. He sealed his testimony with his blood in Rome around AD 165.
Justin’s student Tatian composed the Diatessaron, a harmony weaving the four Gospels into a single continuous narrative. Melito of Sardis addressed the emperor Marcus Aurelius with a striking historical argument: Christianity and the empire had been born together and had prospered together.
For our philosophy formerly flourished among the Barbarians; but having sprung up among the nations under thy rule, during the great reign of thy ancestor Augustus, it became to thine empire especially a blessing of auspicious omen.
— Melito of Sardis, Apology to Marcus Aurelius, preserved in Eusebius, Church History 4.26
https://www.newadvent.org/fathers/250104.htm
The Crisis of the Third Century
From the death of Marcus Aurelius in 180 to the accession of Diocletian in 284, the empire endured roughly a century of upheaval. The Senate lost influence, and the army and Praetorian Guard made and unmade emperors. Military rule supplanted civil government as generals bought the loyalty of their troops. The currency was debased until it was nearly worthless. Famine, plague, and climatic disruption swept the provinces. Many Romans blamed the Christians for provoking the gods, and for the first time persecution became an empire-wide policy. Tertullian captured the reflex with biting irony.
If the Tiber rises as high as the city walls, if the Nile does not send its waters up over the fields, if the heavens give no rain, if there is an earthquake, if there is famine or pestilence, straightway the cry is, “Away with the Christians to the lion!”
— Tertullian, Apology, ch. 40
https://www.newadvent.org/fathers/0301.htm
✦ ✦ ✦
Part Six: North African Defenders of the Faith
Chaos and the First Empire-Wide Persecution
The third century descended into political anarchy. In the single year 238, six different men claimed the imperial title. Gordian III, the last of them, died on campaign in the East. His successor, Philip the Arab, is reported by Eusebius to have sought to join Christian worship at Easter but to have been required by the bishop to confess his sins and stand among the penitents first; later tradition identifies that bishop as Babylas of Antioch.
Philip was overthrown by Decius, who in 249–250 launched the first persecution enforced throughout the entire empire. Hoping to unite Rome around its ancestral gods, Decius required all inhabitants to sacrifice before the emperor’s image and obtain a certificate of compliance. Jews were generally exempted because Romans respected the antiquity of their religion. Valerian (253–260) intensified the persecution, targeting clergy, confiscating property, and executing Christians. His son Gallienus granted what is known as the “little peace,” which lasted for roughly four decades in practice. Aurelian (270–275) championed a vigorous solar paganism, yet he also arbitrated a church property dispute in Antioch by deferring to the bishops of Italy and Rome.
Tertullian: The First Latin Theologian
Many of the century’s leading Christian voices came from North Africa. Tertullian of Carthage, trained in Roman law, became the first major theologian to write in Latin and coined much of the Western Church’s theological vocabulary, including the word trinitas. He distrusted both Greek philosophy and Roman justice, famously asking what Athens had to do with Jerusalem. He denounced the moral corruption of Roman society, including the exposure of infants and the trafficking of abandoned girls into prostitution, and he condemned abortion on the ground that the human being, body and soul together, exists from conception.
Tertullian argued that the Christian way of life was morally superior to paganism and actually better for Rome. He observed that the pagans themselves marveled at Christian charity, exclaiming, “See how they love one another” (Apology, ch. 39). And he delivered the most famous line ever written about persecution.
The oftener we are mown down by you, the more in number we grow; the blood of Christians is seed.
— Tertullian, Apology, ch. 50
https://www.newadvent.org/fathers/0301.htm
Cyprian of Carthage and the Lapsed
Cyprian, bishop of Carthage during the Decian and Valerianic persecutions, guided the African church through grave crises. Between 251 and 256, he convened a series of councils to address the problems persecution had created. The most pressing concerned the lapsi, Christians who had sacrificed or bought certificates under duress. Cyprian took a middle course: the lapsed could be restored to communion after a period of genuine penance. Against the rigorist Novatianists, who refused reconciliation, he insisted on the unity of the Church.
He can no longer have God for his Father, who has not the Church for his mother.
— Cyprian of Carthage, On the Unity of the Church, ch. 6
https://www.newadvent.org/fathers/050701.htm
Cyprian also held that baptisms administered by schismatics were invalid and must be repeated. Stephen I, bishop of Rome, disagreed, ruling that a baptism performed with water in the name of the Trinity was valid even if the minister was outside the Church, so that returning schismatics required only the laying on of hands. Stephen’s position eventually prevailed in Western theology. Cyprian was beheaded in 258.
Alexandria: Clement and Origen
Across the African coast, Alexandria’s catechetical school nurtured a more philosophical theology. Clement of Alexandria drew freely on Platonism, viewing God as utterly transcendent and believing that both Scripture and philosophy derived their truths from the one divine source. He envisioned the Christian life as a progress toward perfection and practiced strict asceticism.
His successor Origen was more ascetic still. His father died in the persecution of Septimius Severus, and Origen himself suffered torture under Decius. A prodigious scholar, he compiled the Hexapla, a massive six-column edition setting the Hebrew Old Testament alongside its Greek versions to address textual differences. His speculative theology, however, ventured into controversial territory, including the hope that all rational beings might ultimately be restored to God. Several of these speculations were later condemned, though his biblical scholarship left a lasting legacy.
✦ ✦ ✦
Part Seven: Diocletian and the Great Persecution
The Tetrarchy and Its Reforms
When Diocletian seized power in 284, he inherited an empire that was fragmenting, with its wealthier and more populous East increasingly dominant. To restore order, he devised the tetrarchy, a college of four rulers. The empire was divided into East and West, each governed by a senior emperor titled Augustus and a junior emperor titled Caesar. Diocletian ruled the East from Nicomedia with Galerius as his Caesar, while Maximian ruled the West from Milan with Constantius Chlorus, father of the future Constantine, as Caesar.
The system brought about two decades of stability. Diocletian enhanced the army’s mobility and strengthened its cavalry, reorganized the provinces under vicars, reformed the coinage, opened new mints, and issued the Edict of Maximum Prices to curb inflation. He also sought to revitalize traditional paganism as the religious foundation of the restored empire.
The Great Persecution
That religious program bore bitter fruit. Beginning in 303, the tetrarchs unleashed the most severe persecution in the Church’s history. Christians in the army, the civil service, and even the imperial household were purged, tortured, and killed. Churches were demolished, Scriptures were burned, and Christian assembly was forbidden. Many of the best-known martyr narratives of the Christian tradition originate in this period.
Succession and Toleration
Diocletian designed the tetrarchy to solve Rome’s chronic succession crisis. Each augustus would retire after twenty years, his caesar would succeed him, and a new caesar would be chosen. True to the plan, Diocletian and Maximian abdicated in 305. But in 306 Constantius died at York, and his troops immediately proclaimed his son Constantine emperor, plunging the empire into a protracted struggle for power.
In 311, Galerius, the tetrarch who had been the most zealous persecutor, issued an Edict of Toleration from his deathbed. He grudgingly admitted that persecution had failed to stamp out Christianity and granted believers the right to worship, provided they prayed for the emperor and the state.
The persecution left deep wounds within the Church. In North Africa, the Donatists insisted that clergy who had surrendered the Scriptures during persecution had forfeited their office and that sacraments administered by them were invalid. In Alexandria, a presbyter named Arius began teaching that the Son of God was a created being, summarized in his slogan that “there was when He was not.” Both controversies would confront Constantine as soon as he secured power.
✦ ✦ ✦
Part Eight: Constantine and the Council of Nicaea
Christianity on the Eve of Constantine
By the early fourth century, Christians had become a substantial and visible minority in the empire, holding positions in the army, the imperial administration, and the schools. They were widely recognized as dependable citizens and devoted family members. Many pagans were moved by the courage of the martyrs, and ancient writers frequently cite miracles as a reason for conversions.
The Rise of Constantine
Constantine had received a classical education in Latin and Greek and had served in the armies of Diocletian and Galerius. After his acclamation at York, he contended with a succession of rivals. In 312, marching on Rome, he defeated Maxentius at the Battle of the Milvian Bridge and became master of the West. Ancient sources describe a vision preceding the battle. Eusebius, who claimed to have heard the account from Constantine himself, reports it this way.
He said that about noon, when the day was already beginning to decline, he saw with his own eyes the trophy of a cross of light in the heavens, above the sun, and bearing the inscription, Conquer by this.
— Eusebius of Caesarea, Life of Constantine 1.28
https://www.newadvent.org/fathers/25021.htm
Constantine had his soldiers mark their shields with the sign, which Lactantius describes as the Chi-Rho monogram of Christ. His victory convinced him that the God of the Christians was his patron. Other Christian influences surrounded him: his half-sister bore the name Anastasia, meaning “resurrection,” and his mother Helena embraced the faith.
In 313, Constantine and Licinius, now emperor in the East, agreed at Milan on a policy granting full religious liberty to Christians and to all others. The partnership soon unraveled, and Licinius renewed harassment of Christians. In 324, Constantine defeated him and became sole ruler of the Roman world.
Constantine’s Reforms
Constantine continued many of Diocletian’s administrative, monetary, and military reforms. In religion, he favored Christians but did not persecute pagans. He suppressed certain occult practices and private divination, yet allowed many temples and traditional cults to continue. He granted Jewish clergy privileges comparable to Christian clergy while forbidding Jews from converting Christians or circumcising Christian slaves. His legislation improved protections for women and made it easier to free slaves through the Church.
Constantine and the Church
Constantine expressed his faith in stone. In Rome he sponsored the great basilicas of the Lateran and of St. Peter. In his new capital of Constantinople, he founded churches that his successors would complete. His mother Helena traveled to the Holy Land and sponsored churches at the sites of Christ’s birth, crucifixion, and burial. Constantine also commissioned fifty copies of the Scriptures for the churches of his capital and established Sunday as a day of rest throughout the empire.
The Council of Nicaea
The Arian controversy threatened to divide the Church just as Constantine had united the empire. Arius taught that the Son, though exalted, was a creature who had a beginning. Bishop Alexander of Alexandria condemned him, but Arius found powerful allies. In a letter to his supporter Eusebius of Nicomedia, Arius stated the heart of the matter plainly.
We are persecuted, because we say that the Son has a beginning, but that God is without beginning.
— Arius, Letter to Eusebius of Nicomedia, preserved in Theodoret, Ecclesiastical History 1.4
https://www.newadvent.org/fathers/27021.htm
In 325, Constantine convened the first ecumenical council at Nicaea and asked the assembled bishops to settle the relationship of the Father and the Son. They produced the Nicene Creed, which confesses the Son to be “true God from true God, begotten, not made,” and homoousios, “of one substance,” with the Father. The council also addressed other canonical questions, including a common method for dating Easter.
The creed did not end the dispute. Arians and semi-Arians remained influential, even among Constantine’s inner circle. In 337, near death, Constantine received baptism from Eusebius of Nicomedia, himself a sympathizer of Arius.
✦ ✦ ✦
Part Nine: The Sons of Constantine and the Crisis of Faith
A Dynasty Divided
At Constantine’s death, the empire was divided among his three surviving sons. The eldest, Constantine II, was killed in 340 while invading the territory of his youngest brother. That brother, Constans, ruled the West until he was murdered in 350 by supporters of the usurper Magnentius. The middle son, Constantius II, survived to become sole emperor, retaining the pagan title of pontifex maximus. Unlike Constans, he favored the Arian party, while tolerating many pagan practices.
The dynasty’s transition was stained with blood. In 337, most of Constantine’s male relatives were massacred, with Constantius II widely held responsible. Two young cousins were spared, among them Julian. Years later, while Constantius was campaigning against the Persians, he summoned Julian’s troops eastward. Julian, by then acclaimed emperor by his own soldiers in Gaul, marched toward a confrontation, but Constantius died of fever in 361 before the armies met.
Julian the Apostate
Julian reigned from 361 to 363. Educated by both Christians and pagans, he renounced Christianity and set out to restore the old gods. His contempt for the faith was colored by the murderous conduct of his Christian cousins. He did not revive bloody persecution, but he worked to weaken the Church by other means: recalling exiled heretical bishops to sow discord, removing Nicene Christians from positions of influence, and forbidding Christians to teach the classics. Yet even Julian conceded that Christian charity was a formidable advantage.
For it is disgraceful that, when no Jew ever has to beg, and the impious Galilaeans support not only their own poor but ours as well, all men see that our people lack aid from us.
— Julian, Letter to Arsacius, High Priest of Galatia (trans. W. C. Wright)
https://www.tertullian.org/fathers/julian_apostate_letters_1_trans.htm
In 363 Julian was mortally wounded during an invasion of Persia. A later tradition, recorded by Theodoret, places on his lips the dying words, “Thou hast conquered, O Galilean.” Whether or not he spoke them, history has rendered the verdict they express.
Athanasius Against the World
The towering defender of Nicene orthodoxy in this era was Athanasius of Alexandria. As a young deacon, he had attended the Council of Nicaea, and as bishop he spent nearly half a century defending its creed. In his treatise On the Incarnation, he argued that God became man not only to rescue humanity from death and corruption but to restore humanity’s capacity to know its Creator.
For He was made man that we might be made God; and He manifested Himself by a body that we might receive the idea of the unseen Father; and He endured the insolence of men that we might inherit immortality.
— Athanasius of Alexandria, On the Incarnation, ch. 54
https://www.newadvent.org/fathers/2802.htm
His steadfastness cost him dearly. He was exiled five times. Constantine sent him to Trier in Gaul in 335 on charges that he had threatened to disrupt the grain shipments to Constantinople. Under Constantius II, he was driven out again and found refuge in Rome with Bishop Julius. Constans secured his return, but in 356 Constantius moved against him once more, and Athanasius fled to the Egyptian desert, sheltered among the monks associated with Anthony. He returned after Constantius’ death, only to be expelled by Julian in 362. Under the Arian emperor Valens, he hid for months, by tradition in his ancestral tomb, before being restored. So pervasive was the Arian ascendancy at mid-century that Jerome could later write a memorable line about it.
The whole world groaned, and was astonished to find itself Arian.
— Jerome, Dialogue Against the Luciferians, ch. 19
https://www.newadvent.org/fathers/3005.htm
Damasus, bishop of Rome, stood with Athanasius and insisted on adherence to the Nicene faith. The cause Athanasius defended was finally vindicated at the Council of Constantinople in 381, which reaffirmed and expanded the Nicene Creed.
✦ ✦ ✦
Part Ten: The Collapse of Rome and the Age of Augustine
The Restless Heart
Augustine was born in 354 in Roman North Africa to a Christian mother, Monica, and a pagan father. As a student in Carthage, he abandoned his mother’s faith and joined the Manichaeans, a dualist sect. He rose to become a professor of rhetoric, eventually holding the prestigious chair in Milan, the effective capital of the Western Empire. There he encountered Bishop Ambrose, whose preaching drew him back to the Scriptures. In a garden in Milan in 386, overwhelmed by inner struggle, he heard what sounded like a child’s voice chanting, “Take up and read.”
So was I speaking, and weeping in the most bitter contrition of my heart, when, lo, I heard the voice as of a boy or girl, I know not, coming from a neighbouring house, chanting, and oft repeating, “Take up and read; take up and read.”
— Augustine, Confessions 8.12
https://www.newadvent.org/fathers/110108.htm
He opened Paul’s letter to the Romans and read the exhortation to put on the Lord Jesus Christ (Romans 13:13–14). Baptized by Ambrose at Easter 387, he lost his mother later that year. His Confessions, written as an extended prayer, recounts his former life of pride and sin and his return to God, opening with the famous confession that the human heart is restless until it rests in God.
Augustine returned to Africa hoping for a quiet life of prayer and study, but the church of Hippo pressed him into ordination, and he eventually became its bishop. Much of his vast literary output defended the faith against the Manichaeans, the Donatists, and the British monk Pelagius, who taught that human beings could achieve righteousness by their own natural powers without the prior necessity of divine grace.
The Sack of Rome
In 410 Alaric and his Visigoths sacked Rome, the first time the city had fallen to a foreign enemy in nearly eight centuries. The shock reverberated across the Mediterranean. Jerome, laboring over Scripture in Bethlehem, was stunned.
The city which had taken the whole world was itself taken.
— Jerome, Letter 127 to Principia, sec. 12
https://www.newadvent.org/fathers/3001127.htm
Years earlier, Jerome had warned that Rome’s sins were making the barbarians strong. Pagans now blamed the Christians for abandoning the gods who had protected the city. Augustine answered in his monumental City of God. He argued that Rome had already fallen once, morally, when the Republic collapsed; that its afflictions arose from pagan vice rather than Christian faith; and that the true homeland of believers is not any earthly city but the eternal city of God.
Accordingly, two cities have been formed by two loves: the earthly by the love of self, even to the contempt of God; the heavenly by the love of God, even to the contempt of self.
— Augustine, The City of God 14.28
https://www.newadvent.org/fathers/120114.htm
Augustine died in August 430 as the Vandals besieged Hippo; the city fell the following year.
The End of the Western Empire
In 476 the Germanic commander Odoacer deposed Romulus Augustulus, conventionally regarded as the last western emperor. The eastern empire endured for nearly another thousand years. Justinian in the sixth century reconquered much of the West, but these gains proved short-lived. Arab invasions in the seventh and eighth centuries stripped away much eastern territory, yet Constantinople itself held until the Ottoman Turks captured it in 1453. In the West, meanwhile, the pressure of the Huns drove Germanic peoples across the old frontiers throughout the fifth and sixth centuries.
The Church as the Seedbed of Renewal
Out of the wreckage, renewal came from the Church. Its bishops, monasteries, churches, and schools had spread throughout the former Roman territories, and they became islands of order and learning. Irish missionaries, whose island had escaped the worst devastation, carried the faith and literacy into Britain and the Continent. The Venerable Bede flourished in Northumbria. Cassiodorus founded a monastic library in southern Italy dedicated to copying Scripture and the classics. Charlemagne enlisted Alcuin of York to revive learning among the Franks, and Alfred the Great promoted education and translation in England. These movements preserved the heritage of the ancient world and prepared the way for the great medieval and Renaissance flowerings to come.
✦ ✦ ✦
Conclusion: The Kingdom That Had No End
The story traced in these lectures begins with a claim that sounded like madness: that the eternal Word had become flesh. It moves through centuries in which that claim was mocked by philosophers, suppressed by emperors, distorted by heretics, and sealed with the blood of martyrs. And it ends with the Church standing amid the ruins of the very empire that had tried to destroy it.
Two lessons stand out. The first is that the Church’s greatest victories were won not by the sword but by fidelity: the bishop who would not curse his King, the theologian who stood against the world, the ordinary believers whose charity shamed even an apostate emperor. The second is that the boundaries of orthodoxy were drawn not in calm academic leisure but in the furnace of controversy, as faithful pastors labored to guard the apostolic deposit against every attempt to deny either the full deity or the true humanity of Christ.
The Nicene fathers confessed of Christ that His kingdom “shall have no end.” Augustus is remembered as a historical figure; Jesus Christ is worshiped by more than two billion people. The marble city fell; the city of God endures. As Augustine prayed at the climax of his own pilgrimage, the God who made us for Himself is the only rest of the restless heart.
Too late did I love Thee, O Fairness, so ancient, and yet so new! Too late did I love Thee! For behold, Thou wert within, and I without, and there did I seek Thee.
— Augustine, Confessions 10.27
https://www.newadvent.org/fathers/110110.htm
✦ ✦ ✦
A Scholar’s Note on Points of Historical Precision
The Hillsdale study guides are outlines rather than finished histories, and in a few places they compress or misstate details. In the interest of accuracy, the following refinements have been incorporated into the narrative above.
The agreement at Milan between Constantine and Licinius dates to 313, not 312; the text is preserved by Lactantius (On the Deaths of the Persecutors, ch. 48) and Eusebius (Church History 10.5). Regarding the fire of 64, the outline states Nero’s guilt as common knowledge, but the ancient sources are divided: Suetonius and Cassius Dio blame Nero, while Tacitus records the rumor and admits uncertainty.
The miracle of the oil associated with Hanukkah appears not in 1 or 2 Maccabees but in the later Babylonian Talmud (Shabbat 21b); the Maccabean books record the rededication of the temple in 164 BC. The story of the Septuagint’s commissioning by Ptolemy II comes from the Letter of Aristeas and applies, at most, to the Torah; the remaining books were translated over the following centuries.
Irenaeus was a disciple of Polycarp; there is no evidence that he studied under Ignatius. The Donatist schism arose from the dispute over clergy who surrendered Scriptures in the Diocletianic persecution, beginning with the contested election of Caecilian of Carthage around 311; it did not emerge from Montanism, though the two movements shared a rigorist temperament. The outline’s reference to the “Aryan controversy” should read “Arian.”
After AD 224, Rome’s great eastern rival was the Sasanian Persian Empire, not the Parthians; Gordian III, Valerian, Constantius II, and Julian all campaigned against the Sasanians. Eusebius does not name the bishop who required Philip the Arab to do penance (Church History 6.34); the identification with Babylas comes from later tradition, notably John Chrysostom.
The figure of forty percent Christianization by Constantine’s reign is far higher than most scholarly estimates, which generally place Christians at roughly ten percent of the population around AD 300 (see Rodney Stark, The Rise of Christianity). There is no evidence that Constantine “shaped the canon”; he commissioned fifty Bibles (Life of Constantine 4.36), but the earliest list matching the twenty-seven-book New Testament is Athanasius’s Thirty-Ninth Festal Letter of 367. The church of Hagia Sophia was dedicated in 360 under Constantius II, and the present building is Justinian’s reconstruction of 537.
Origen did not flatly deny hell; he speculated about an eventual restoration (apokatastasis) of rational beings, ideas condemned at the Second Council of Constantinople in 553. On Cyprian’s dispute with Stephen, the Roman position was that baptism administered with water in the Triune name is valid regardless of the minister’s communion. The “little peace” inaugurated by Gallienus in 260 lasted, in practice, more than forty years, until the Great Persecution of 303, rather than roughly ten. Finally, Augustine was baptized at Easter 387, and Monica died at Ostia some months later that year, rather than within weeks of his conversion.
✦ ✦ ✦
The Church That Never Vanished
A Supplement: Why the History of Ancient Christianity Contradicts the Latter-day Saint Doctrine of a “Great Apostasy”
✦ ✦ ✦
The history traced in the preceding study poses a problem the Church of Jesus Christ of Latter-day Saints has never resolved. LDS teaching holds that after the apostles died, priesthood authority was withdrawn from the earth and the church Christ founded ceased to exist until 1820. Yet the four centuries surveyed here present not a vacancy but a crowded, contentious, unbroken record: bishops ordained in succession, creeds memorized by the unlettered, Scriptures copied and recognized, and martyrs dying with Christ’s name on their lips.
Consider the witnesses. Clement of Rome, writing while men who knew the apostles still lived, insisted that the apostles themselves had provided for approved men to succeed to their ministry. Irenaeus, a disciple of Polycarp, refuted the Gnostics by appealing to that succession and to the fourfold Gospel. Polycarp went to the flames confessing a King he had served for eighty-six years. Cyprian convened councils; Athanasius endured five exiles. Not one of them imagined he belonged to a church stripped of its authority.
The evidence establishes conflict, corruption, and crisis. It does not establish cessation.
— “The Blood of the Witnesses,” The Righteous Cause
https://novus2.com/righteouscause/2026/09/14/the-blood-of-the-witnesses-why-the-apostles-sacrifice-refutes-the-lds-doctrine-of-a-total-apostasy/
The irony sharpens at Nicaea. LDS leaders have identified the Nicene settlement as the moment Christians lost the truth about God. But the record shows the council defending, against Arius’s innovation, a confession of Christ’s deity already voiced by Ignatius, Justin, and Tertullian generations earlier. Athanasius was conserving an inheritance, not inventing a novelty.
Dead orthodoxy does not produce Athanasius. Total apostasy does not produce Augustine.
— “The Gates Did Not Prevail,” The Righteous Cause
https://novus2.com/righteouscause/2026/02/24/the-gates-did-not-prevail-a-biblical-and-historical-case-against-the-lds-great-apostasy-doctrine/
Nor do the Fathers, so often mined for “parallels,” cooperate with the restoration narrative. Athanasius’s famous line that the Word “was made man that we might be made God” sits inside a treatise devoted to one eternal, uncreated God, not a plurality of exalted men.
To extract such passages and read them through the lens of nineteenth-century Nauvoo theology is not historical exegesis. It is ventriloquism.
— “Begging the Question for a Restored Church,” The Righteous Cause
https://novus2.com/righteouscause/2026/05/14/begging-the-question-for-a-restored-church-an-apologetic-audit-of-the-lds-great-apostasy-doctrine/
Finally, the very book by which the restoration judges historic Christianity was preserved by it. The bishops weighed apostolic origin and universal use; Irenaeus defended the Gospels; monks like Cassiodorus copied the sacred text through the collapse of the West. The supposedly apostate church carried the Bible intact across sixteen centuries and placed it in the Smith household in Palmyra.
How could an utterly apostate church faithfully preserve the very Bible by which Mormonism judges it apostate?
— “Examining LDS Prophetic Claims Against Traditional Biblical Standards,” The Righteous Cause
https://novus2.com/righteouscause/2026/05/22/examining-lds-prophetic-claims-against-traditional-biblical-standards/
Tertullian told the persecutors that the blood of Christians is seed. A field sown with such seed did not lie barren for seventeen centuries. The gates of hell did not prevail (Matthew 16:18); Christ’s promise held, and the Church that outlasted the Caesars required no restoration, because it was never lost.
Sources and Further Reading
Hillsdale College. “Ancient Christianity.” Online course study guides, Lectures 2–11. https://online.hillsdale.edu/courses/ancient-christianity
Stevenson, J., ed. A New Eusebius: Documents Illustrating the History of the Church to AD 337. Revised by W. H. C. Frend. London: SPCK, 1987.
The Holy Bible, King James Version. https://www.biblegateway.com/versions/King-James-Version-KJV-Bible/
Athanasius of Alexandria. On the Incarnation of the Word. Nicene and Post-Nicene Fathers, Series 2, Vol. 4. https://www.newadvent.org/fathers/2802.htm
Augustine of Hippo. Confessions. Nicene and Post-Nicene Fathers, Series 1, Vol. 1. https://www.newadvent.org/fathers/1101.htm
Augustine of Hippo. The City of God. Nicene and Post-Nicene Fathers, Series 1, Vol. 2. https://www.newadvent.org/fathers/1201.htm
Cyprian of Carthage. On the Unity of the Church. Ante-Nicene Fathers, Vol. 5. https://www.newadvent.org/fathers/050701.htm
Epistle to Diognetus. Ante-Nicene Fathers, Vol. 1. https://www.newadvent.org/fathers/0101.htm
Eusebius of Caesarea. Church History. Nicene and Post-Nicene Fathers, Series 2, Vol. 1. https://www.newadvent.org/fathers/2501.htm
Eusebius of Caesarea. Life of Constantine. Nicene and Post-Nicene Fathers, Series 2, Vol. 1. https://www.newadvent.org/fathers/2502.htm
Ignatius of Antioch. Epistle to the Smyrnaeans. Ante-Nicene Fathers, Vol. 1. https://www.newadvent.org/fathers/0109.htm
Irenaeus of Lyons. Against Heresies. Ante-Nicene Fathers, Vol. 1. https://www.newadvent.org/fathers/0103.htm
Jerome. Letters and Dialogue Against the Luciferians. Nicene and Post-Nicene Fathers, Series 2, Vol. 6. https://www.newadvent.org/fathers/3001.htm
Julian. Letters. Translated by Wilmer Cave Wright. Loeb Classical Library, 1923. https://www.tertullian.org/fathers/julian_apostate_letters_1_trans.htm
Justin Martyr. First and Second Apologies. Ante-Nicene Fathers, Vol. 1. https://www.newadvent.org/fathers/0127.htm
Lactantius. On the Deaths of the Persecutors. Ante-Nicene Fathers, Vol. 7. https://www.newadvent.org/fathers/0705.htm
Martyrdom of Polycarp. Ante-Nicene Fathers, Vol. 1. https://www.newadvent.org/fathers/0102.htm
Pliny the Younger and Trajan. Letters 10.96–97. Internet Ancient History Sourcebook, Fordham University. https://sourcebooks.fordham.edu/source/pliny1.asp
Stark, Rodney. The Rise of Christianity: A Sociologist Reconsiders History. Princeton: Princeton University Press, 1996.
Tacitus. Annals. Translated by Alfred John Church and William Jackson Brodribb. Perseus Digital Library. https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.02.0078
Tertullian. Apology. Ante-Nicene Fathers, Vol. 3. https://www.newadvent.org/fathers/0301.htm
Theodoret. Ecclesiastical History. Nicene and Post-Nicene Fathers, Series 2, Vol. 3. https://www.newadvent.org/fathers/2702.htm
✦ ✦ ✦
Colophon
This essay was researched and drafted with the assistance of Claude, an AI model developed by Anthropic, working as a scholarly research collaborator. All editorial decisions, theological judgments, and final wording rest with the author. Patristic and classical quotations are drawn from public-domain translations, chiefly the Ante-Nicene and Nicene and Post-Nicene Fathers series, and should be verified against the cited sources before publication.