Primary Texts
The Fathers, in their own words.
Two thousand years of preaching, commentary, and ascetic literature — by era.
The Didache
Anonymous (Apostolic)
Epistle to Diognetus
Mathetes (Anonymous)
Epistle of Barnabas
Pseudo-Barnabas
First Epistle to the Corinthians
St. Clement of Rome
On the Unity of the Church
St. Cyprian of Carthage
Epistles of Ignatius
St. Ignatius of Antioch
Against Heresies
St. Irenaeus of Lyon
Fragments from the Lost Writings of Irenaeus
St. Irenaeus of Lyons
Dialogue with Trypho
St. Justin Martyr
Other Writings
St. Justin Martyr
Other Writings of Justin Martyr
St. Justin Martyr
The Apologies
St. Justin Martyr
Fragments of Papias
St. Papias of Hierapolis
The Martyrdom of Polycarp
St. Polycarp of Smyrna
Writings of Polycarp
St. Polycarp of Smyrna
Ecclesiastical History
Eusebius of Caesarea
Life of Constantine
Eusebius of Caesarea
Exposition of the Christian Faith
St. Ambrose of Milan
On the Duties of the Clergy
St. Ambrose of Milan
On the Holy Spirit
St. Ambrose of Milan
On the Mysteries and On the Sacraments
St. Ambrose of Milan
Selected Ethical Works and Letters
St. Ambrose of Milan
Contra Gentes
St. Athanasius the Great
Discourses Against the Arians
St. Athanasius the Great
Festal Letters
St. Athanasius the Great
History of the Arians
St. Athanasius the Great
On the Councils
St. Athanasius the Great
On the Incarnation
St. Athanasius the Great
On the Life of Antony
St. Athanasius the Great
The Apologetic Writings
St. Athanasius the Great
Letters
St. Basil the Great
On the Holy Spirit
St. Basil the Great
On the Holy Spirit
St. Basil the Great
The Hexaemeron
St. Basil the Great
Catechetical Lectures
St. Cyril of Jerusalem
On the Divine Names and the Mystical Theology
St. Dionysius the Areopagite
Against Eunomius
St. Gregory of Nyssa
Answer to Eunomius' Second Book
St. Gregory of Nyssa
On Virginity
St. Gregory of Nyssa
On the Making of Man
St. Gregory of Nyssa
On the Soul and the Resurrection
St. Gregory of Nyssa
On the Soul and the Resurrection
St. Gregory of Nyssa
The Great Catechism
St. Gregory of Nyssa
Pastoral Rule
St. Gregory the Great
Register of Epistles
St. Gregory the Great
Orations and Letters
St. Gregory the Theologian
Select Letters
St. Gregory the Theologian
Select Orations
St. Gregory the Theologian
Theological Tractates
St. Gregory the Theologian
De Synodis
St. Hilary of Poitiers
On the Trinity
St. Hilary of Poitiers
Against Jovinianus
St. Jerome
Against Vigilantius and Against John
St. Jerome
Dialogue Against the Pelagians
St. Jerome
Letters C–CLV
St. Jerome
Letters I–LI
St. Jerome
Letters LII–XCIX
St. Jerome
Lives of the Monks
St. Jerome
Prefaces to the Vulgate
St. Jerome
The Dialogues
St. Jerome
Homilies on the Gospel of John
St. John Chrysostom
On the Priesthood
St. John Chrysostom
Letters of Leo the Great
St. Leo the Great
Sermons of Leo the Great
St. Leo the Great
The Sayings of the Desert Fathers
The Desert Fathers
The Seven Ecumenical Councils
The Seven Ecumenical Councils