The Apostolic Fathers: What the First Christians Believed

📅 Last updated: 28.10.2026

The Apostolic Fathers are the earliest Christian writers who lived and ministered in the generation immediately after the apostles, and their letters and visions preserve what the first Christians actually believed about God, Christ, salvation, and the church. Their writings—Clement of Rome, Ignatius of Antioch, Polycarp of Smyrna, the anonymous author of the Didache, the author of the Epistle of Barnabas, the Shepherd of Hermas, and Papias—date roughly from A.D. 70 to 150 and were read aloud in early congregations alongside Scripture.

The Apostolic Fathers were late first- and early second-century church leaders who personally knew or were taught by the apostles. Their surviving writings—1 Clement, the seven letters of Ignatius, Polycarp’s letter to the Philippians, the Didache, Barnabas, the Shepherd of Hermas, and fragments of Papias—show that the earliest post-apostolic Christians believed in one God, the deity and resurrection of Jesus Christ, salvation by grace through faith, the authority of Scripture, the reality of the resurrection, and the moral seriousness of the Christian life.

Who Were the Apostolic Fathers, and Why Do They Matter?

The label “Apostolic Fathers” was popularized in the seventeenth century by scholars such as Jean-Baptiste Cotelier and William Wake, who grouped the earliest non-canonical Christian writings under a single heading. The term does not mean these men were apostles. It means they stood in the shadow of the apostles—some, like Clement of Rome, may have known Peter and Paul; Polycarp was a disciple of the apostle John according to Irenaeus (Against Heresies 3.3.4); and Papias claimed to have learned from those who had heard the apostles directly.

Why should a modern reader care? Because these documents sit in the narrow gap between the close of the New Testament and the great councils of the fourth century. They reveal what Christians believed before the creeds were formalized, before the canon was universally settled, and before the church had institutional power. They are the closest thing we have to a snapshot of the apostolic faith as it was transmitted to the next generation.

The core writings are usually grouped as follows:

• 1 Clement (c. A.D. 96)—a letter from the church at Rome to the church at Corinth, urging unity and order.
• The seven letters of Ignatius of Antioch (c. A.D. 107–110)—written on his way to martyrdom in Rome.
• The Epistle of Polycarp to the Philippians (c. A.D. 110–140)—a pastoral letter saturated with New Testament quotations.
• The Didache (late first or early second century)—the “Teaching of the Twelve Apostles,” a manual on ethics, baptism, fasting, and the Eucharist.
• The Epistle of Barnabas (c. A.D. 70–130)—an allegorical reading of the Old Testament.
• The Shepherd of Hermas (c. A.D. 100–150)—a series of visions and parables calling the church to repentance.
• The fragments of Papias (c. A.D. 60–130)—preserved by Eusebius, offering early testimony about the Gospels.

What Did the Apostolic Fathers Believe About God and Christ?

On the doctrine of God, the Apostolic Fathers are unambiguously monotheistic, echoing the Shema of Deuteronomy 6:4. Clement opens his letter by praising the Corinthians for their “faith in the Almighty God” and their “reverence for the Lord Jesus Christ.” There is no drift toward polytheism or philosophical pluralism. The God of Israel is the God of the church.

The Deity of Christ

The most striking feature of the Apostolic Fathers is how early and how clearly they confess Jesus as divine. Ignatius of Antioch, writing around A.D. 107, addresses Jesus as “our God” (Ephesians 18:2) and speaks of “the blood of God” (Ephesians 1:1). In his letter to the Romans, he calls Christ “our God” and longs to imitate “the passion of my God” (Romans 6:3). This is not a fourth-century invention. It is the language of a bishop who was born within a generation of the crucifixion.

Ignatius also insists on the real humanity of Christ against the Docetists, who taught that Jesus only appeared to suffer. He writes that Jesus was “truly born, truly crucified, and truly raised” (Trallians 9). The incarnation, for Ignatius, is not a philosophical puzzle but a pastoral anchor: if Christ did not truly suffer, our salvation is a fiction.

The Holy Spirit and the Trinity in Seed Form

The Apostolic Fathers do not articulate the Nicene doctrine of the Trinity with later precision, but the raw materials are present. Clement speaks of the Father, Son, and Holy Spirit as the source of the church’s faith (1 Clement 58:2). The Didache opens with a triune formula for baptism: “in the name of the Father and of the Son and of the Holy Spirit” (Didache 7:1), echoing Matthew 28:19. These are not yet systematic formulations, but they are the seeds from which the creeds would grow.

What Did the Apostolic Fathers Believe About Salvation and Grace?

Here the Apostolic Fathers are often caricatured—some as proto-Pelagians, others as proto-Catholics, others as proto-Protestants. The reality is more textured. Theirs is a robust, grace-centered faith that takes both divine initiative and human responsibility seriously.

Clement of Rome, writing to a church torn by jealousy and factionalism, grounds salvation in the blood of Christ: “Let us fix our eyes on the blood of Christ, and see how precious it is to God, which was poured out for our salvation, bringing to the whole world the grace of repentance” (1 Clement 7:4). Repentance itself is a gift. Polycarp, in his letter to the Philippians, writes that we are saved “by grace, not by works” (Polycarp 1:3, echoing Ephesians 2:8–9), yet he immediately insists that believers must “walk worthy of him” (Polycarp 1:2). The pattern is apostolic: grace saves, and grace transforms.

The Didache frames the Christian life as “the Two Ways”—the way of life and the way of death (Didache 1:1). This is not works-righteousness; it is the moral seriousness that flows from baptism. The Shepherd of Hermas, meanwhile, emphasizes repentance after baptism, which some later readers found troubling. Hermas is not denying grace; he is wrestling with the pastoral question of what to do when believers sin after conversion. His answer—repentance is available, but it is costly—reflects a community taking holiness seriously.

How Did the Apostolic Fathers Use Scripture?

The Apostolic Fathers did not have a settled New Testament canon. They quote the Old Testament extensively, often from the Septuagint, and they cite or allude to the Gospels and Paul’s letters as authoritative. Clement, writing around A.D. 96, quotes Paul’s first letter to the Corinthians and refers to the “Gospel” as something the Corinthians should already know. Polycarp, writing a few decades later, weaves together quotations from Matthew, Luke, Romans, 1 Corinthians, Galatians, Ephesians, Philippians, 1 Peter, and 1 John—sometimes so seamlessly that scholars debate whether he is quoting or echoing.

This matters for the question of the canon. The Apostolic Fathers show that the apostolic writings were already being read and revered as Scripture in the late first and early second centuries, long before the councils of the fourth century ratified the canon. They did not create the canon; they bear witness to it.

What Did the Apostolic Fathers Believe About the Church and Its Order?

The Apostolic Fathers consistently assume that the church is a visible, ordered community. Clement of Rome, addressing the Corinthian crisis, argues that the apostles appointed bishops and deacons and that this order should be respected (1 Clement 42–44). Ignatius of Antioch, writing to churches across Asia Minor, insists that the bishop is the center of unity: “Let no one do anything of the things pertaining to the church without the bishop” (Smyrnaeans 8:1). For Ignatius, the bishop is not a tyrant but a symbol of the church’s unity in Christ.

This does not mean the Apostolic Fathers were monarchical bishops in the later medieval sense. The Didache, for instance, speaks of itinerant apostles and prophets alongside local bishops and deacons (Didache 11–15), suggesting a fluid and evolving structure. The picture is of a church finding its institutional footing, not of a fully developed hierarchy.

What Did the Apostolic Fathers Believe About the Sacraments and Worship?

The Apostolic Fathers give us our earliest non-canonical glimpses of Christian worship. The Didache provides the oldest surviving baptismal instruction outside the New Testament: baptize “in the name of the Father and of the Son and of the Holy Spirit” in running water, and if running water is unavailable, use cold or warm water; if neither is available, pour water three times on the head (Didache 7:1–3). The mode is flexible; the triune formula is not.

The Didache also gives us a glimpse of early Eucharistic prayer: “We give thanks to you, our Father, for the holy vine of David your servant, which you have made known to us through Jesus your servant” (Didache 9:2). The language is liturgical, communal, and deeply scriptural. Ignatius, writing a few years later, calls the Eucharist “the flesh of our Savior Jesus Christ” (Smyrnaeans 7:1), a striking early witness to the real presence—though the precise meaning of that phrase has been debated ever since.

A Timeline of the Apostolic Fathers

Writing	Author / Setting	Approximate Date	Key Theme
1 Clement	Clement of Rome to Corinth	A.D. 96	Unity, order, and the blood of Christ
Didache	Anonymous, possibly Syria	A.D. 70–120	The Two Ways, baptism, Eucharist, church order
Letters of Ignatius	Ignatius of Antioch, en route to Rome	A.D. 107–110	Deity of Christ, episcopacy, martyrdom
Epistle of Polycarp	Polycarp of Smyrna to Philippi	A.D. 110–140	Grace, holiness, Scripture
Epistle of Barnabas	Anonymous, likely Alexandria	A.D. 70–130	Allegorical reading of the Old Testament
Shepherd of Hermas	Hermas, Rome	A.D. 100–150	Repentance and visions of the church

What Did the Apostolic Fathers Believe About Martyrdom and the Future?

The Apostolic Fathers lived in an age when being a Christian could cost you your life. Ignatius, writing to the Romans, begs them not to intervene on his behalf: “I am God’s wheat, and I am ground by the teeth of wild beasts, that I may be found pure bread of Christ” (Romans 4:1). This is not morbid romanticism; it is a theology of discipleship in which death is gain because Christ is risen. Polycarp, in his own martyrdom account (written by his church shortly after his death around A.D. 155), prays that he might share “in the cup of your Christ” (Martyrdom of Polycarp 14).

On the future, the Apostolic Fathers are not speculative. They affirm the resurrection of the body and the return of Christ, but they do not map out millennial charts. The Didache closes with a sober eschatological warning: “Watch for your life’s sake. Let not your lamps be quenched, nor your loins unstrung, but be ready, for you know not the hour in which our Lord comes” (Didache 16:1). The emphasis is on readiness, not on prediction.

What Do the Apostolic Fathers Teach Us Today?

First, they remind us that the gospel did not evolve into something else after the apostles died. The same Christ, the same cross, the same resurrection, and the same call to holiness appear in their writings. Ignatius calls Jesus “our God”; Polycarp quotes Paul on grace; Clement grounds hope in the blood of Christ. These are not later accretions. They are the apostolic deposit, passed hand to hand.

Second, they show us that the early church was not a monolith. The Didache’s itinerant prophets, Ignatius’s bishops, Clement’s presbyters, and Hermas’s visions reflect different settings and different pastoral needs. Unity in the early church was not uniformity; it was a shared faith expressed in diverse forms.

Third, they challenge our modern tendency to separate doctrine from life. For the Apostolic Fathers, what you believe about Christ determines how you live. If Christ is God, then the bishop matters, the Eucharist matters, baptism matters, and the way you treat the poor matters. The Two Ways of the Didache are not a legalistic checklist; they are the shape of a life transformed by grace.

How Should We Read the Apostolic Fathers Today?

Read them as you would read a letter from a wise older believer who stood close to the apostles. Do not read them as Scripture—they themselves do not claim that status—but do read them as faithful witnesses to what the church believed when the ink of the New Testament was still fresh. Read 1 Clement alongside 1 Corinthians, Ignatius alongside John, Polycarp alongside Philippians. You will hear the same voice, sometimes echoing, sometimes paraphrasing, always pointing to Christ.

And read them with humility. These were not perfect men. Ignatius could be imperious; Hermas could be confusing; Barnabas could be allegorically extravagant. But they were faithful. They held the line when the line was costly. They handed on what they had received. And in doing so, they left us a window into the faith of the first Christians—a faith that is, in its essentials, the faith we still confess.

The Apostolic Fathers and the Faith Once Delivered

The Apostolic Fathers are not a curiosity for historians. They are a pastoral gift to the church. They show us that the faith once delivered to the saints (Jude 3) was not an abstraction but a lived reality—baptized, eucharistic, martyrical, and hopeful. They show us that the earliest Christians believed in the deity of Christ, the reality of the resurrection, the authority of Scripture, the seriousness of sin, and the sufficiency of grace. And they show us that this faith was worth dying for.

When Ignatius wrote to the Romans that he was “God’s wheat,” he was not being dramatic. He was being honest. The same Christ who called the apostles called him, and the same Spirit who inspired the Scriptures inspired his courage. The Apostolic Fathers stand at the headwaters of the church’s tradition, and their witness remains a clear, bracing stream. Drink deeply. You will find the water is still fresh.

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