Who were the key Church Fathers in Christianity?

The Early Church Fathers were often used by Roman Catholic, Eastern Orthodox and other Christian denominations to substantiate their traditions and doctrinal teachings.

The Church Fathers showed great leadership in the early Church, especially in defending, expounding and developing Christian Catholic doctrines. For the first two centuries, most of these men were bishops, although in later years certain priests and deacons became recognised as Fathers.

| Wikipedia: Church_Fathers

Church Fathers - Treatise, Letters, Texts & Epistles
	Barnabas \| 70 - 130 AD Epistle of Barnabas \| Wikipedia: Barnabas
	Clement of Rome \| 95 - 97 AD First Epistle Second Epistle Two Epistles Concerning Virginity Recognitions Clementine Homilies \| Wikipedia: Pope_Clement_I
	Ignatius of Antioch \| 110 - 110 AD Epistle to the Ephesians Epistle to the Magnesians Epistle to the Trallians Epistle to the Romans Epistle to the Philadelphians Epistle to the Smyrnaeans Epistle to Polycarp The Martyrdom of Ignatius The Spurious Epistles \| Wikipedia: Ignatius_of_Antioch
	Polycarp \| 110 - 150 AD Epistle to the Philippians The Martyrdom of Polycarp \| Wikipedia: Polycarp
	Hermas \| 115 - 140 AD The Pastor (or "The Shepherd") \| Wikipedia: Hermas_(freedman)
	Didache \| 120 - 150 AD The Didache \| Wikipedia: Didache
	Papias of Hierapolis \| 130 - 140 AD Fragments \| Wikipedia: Papias_of_Hierapolis
	Irenaeous \| 130 - 202 AD Adversus haereses Fragments from the Lost Writings of Irenaeus \| Wikipedia: Irenaeus
	Diognetus \| 150 - 150 AD Epistle to Diognetus \| Wikipedia: Epistle_to_Diognetus
	Justin Martyr \| 150 - 155 AD First Apology Second Apology Dialogue with Trypho Hortatory Address to the Greeks On the Sole Government of God Fragments of the Lost Work on the Resurrection Miscellaneous Fragments from Lost Writings Martyrdom of Justin, Chariton, and other Roman Martyrs Discourse to the Greeks \| Wikipedia: Justin_Martyr
	Clement of Alexandria \| 150 - 215 AD Who is the Rich Man That Shall Be Saved? Exhortation to the Heathen The Instructor The Stromata, or Miscellanies Fragments \| Wikipedia: Clement_of_Alexandri..
	Tertullian \| 150 - 220 AD The Apology On Idolatry De Spectaculis (The Shows) De Corona (The Chaplet) To Scapula Ad Nationes An Answer to the Jews The Soul's Testimony A Treatise on the Soul The Prescription Against Heretics Against Marcion Against Hermogenes Against the Valentinians On the Flesh of Christ On the Resurrection of the Flesh Against Praxeas Scorpiace Appendix (Against All Heresies) On Repentance On Baptism On Prayer Ad Martyras The Martyrdom of Perpetua and Felicity Of Patience On the Pallium On the Apparel of Women On the Veiling of Virgins To His Wife On Exhortation to Chastity On Monogamy On Modesty On Fasting De Fuga in Persecutione \| Wikipedia: Tertullian
	Origen \| 185 - 254 AD De Principiis Africanus to Origen Origen to Africanus Origen to Gregory Against Celsus Letter of Origen to Gregory Commentary on the Gospel of John Commentary on the Gospel of Matthew \| Wikipedia: Origen
	Cyril of Jerusalem \| 315 - 386 AD Catechetical Lectures \| Wikipedia: Cyril_of_Jerusalem
	Eusebius of Caesarea \| 325 - 340 AD Church History Life of Constantine Oration of Constantine "to the Assembly of the Saints" Oration in Praise of Constantine Letter on the Council of Nicaea \| Wikipedia: Eusebius
	Athanasius of Alexandria \| 367 - 367 AD Against the Heathen On the Incarnation of the Word Deposition of Arius Statement of Faith On Luke 10:22 (Matthew 11:27) Circular Letter Apologia Contra Arianos De Decretis De Sententia Dionysii Vita S. Antoni (Life of St. Anthony) Ad Episcopus Aegypti et Libyae Apologia ad Constantium Apologia de Fuga Historia Arianorum Four Discourses Against the Arians De Synodis Tomus ad Antiochenos Ad Afros Epistola Synodica Historia Acephala Letters \| Wikipedia: Athanasius_of_Alexan..
	Augustine of Hippo \| 400 - 400 AD Confessions Letters City of God Christian Doctrine On the Holy Trinity The Enchiridion On the Catechising of the Uninstructed On Faith and the Creed Concerning Faith of Things Not Seen On the Profit of Believing On the Creed: A Sermon to Catechumens On Continence On the Good of Marriage On Holy Virginity On the Good of Widowhood On Lying To Consentius: Against Lying On the Work of Monks On Patience On Care to be Had For the Dead On the Morals of the Catholic Church On the Morals of the Manichaeans On Two Souls, Against the Manichaeans Acts or Disputation Against Fortunatus the Manichaean Against the Epistle of Manichaeus Called Fundamental Reply to Faustus the Manichaean Concerning the Nature of Good, Against the Manichaeans On Baptism, Against the Donatists Answer to Letters of Petilian, Bishop of Cirta Merits and Remission of Sin, and Infant Baptism On the Spirit and the Letter On Nature and Grace On Man's Perfection in Righteousness On the Proceedings of Pelagius On the Grace of Christ, and on Original Sin On Marriage and Concupiscence On the Soul and its Origin Against Two Letters of the Pelagians On Grace and Free Will On Rebuke and Grace The Predestination of the Saints/Gift of Perseverance Our Lord's Sermon on the Mount The Harmony of the Gospels Sermons on Selected Lessons of the New Testament Tractates on the Gospel of John Homilies on the First Epistle of John Soliloquies The Enarrations, or Expositions, on the Psalms \| Wikipedia: Augustine of Hippo

Author: Guest • Updated: 01 Aug 2026

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