The Library

The Fathers,
the Councils,
the Tradition

The reference layer behind the catechism. Every Father cited, every council documented, every primary source accessible.

Holy Fathers
Ecumenical Councils
Primary Sources
Theological Glossary
Holy Fathers

Thirty-three Theologians
of the Church

The men whose writings, lives, and deaths shaped the faith once delivered to the saints. Not innovators but transmitters.

I
St. Ignatius of Antioch Apostolic Father, martyr
c.35–107
I
St. Irenaeus of Lyon Against Heresies; Recapitulation
c.130–202
C
St. Clement of Alexandria First systematic theologian
c.150–215
O
Origen of Alexandria Theologian; conditioned reception
184–253
A
St. Athanasius of Alexandria Defender of Nicene Orthodoxy
c.296–373
E
St. Ephrem the Syrian Harp of the Holy Spirit
c.306–373
B
St. Basil the Great Father of Eastern Monasticism
329–379
G
St. Gregory the Theologian Five Theological Orations
329–390
G
St. Gregory of Nyssa Theologian of theosis and epektasis
c.335–395
A
St. Ambrose of Milan Bishop; hymn writer
340–397
M
St. Macrina the Elder Teacher of Basil and Gregory
c.270–340
J
St. John Chrysostom Golden-mouthed preacher
347–407
J
St. Jerome Translator of the Vulgate
347–420
A
Blessed Augustine of Hippo Western Father; nuanced reception
354–430
C
St. Cyril of Alexandria Defender of the Theotokos
c.376–444
D
St. Dionysius the Areopagite Mystical Theology; Divine Names
c.5th–6th c
V
St. Vincent of Lérins The Vincentian Canon
d.c.445
L
Leontius of Byzantium Enhypostasia doctrine
c.485–543
M
St. Maximus the Confessor Synthesis of all theology
580–662
I
St. Isaac of Nineveh (the Syrian) Ascetical homilies; mercy theology
c.613–700
J
St. John of Damascus Exposition of the Orthodox Faith
c.675–749
T
St. Theodore the Studite Defender of icons; monastic reform
759–826
P
St. Photius the Great Against the Filioque
c.820–893
S
St. Symeon the New Theologian Theologian of divine light
949–1022
T
St. Theophylact of Ohrid Gospel commentaries
c.1055–1107
N
St. Nicholas Cabasilas Life in Christ; sacramental theology
c.1319–1392
G
St. Gregory Palamas Essence-energies distinction
1296–1359
M
St. Mark of Ephesus Refused union at Florence
1392–1444
N
St. Nicodemos of the Holy Mountain Philokalia editor; Rudder
1749–1809
S
St. Seraphim of Sarov Acquisition of the Holy Spirit
1754–1833
T
St. Theophan the Recluse The Path to Salvation; letters
1815–1894
J
St. John of Kronstadt My Life in Christ; spiritual father
1829–1908
S
Elder Sophrony of Essex We Shall See Him as He Is
1896–1993
Ecumenical Councils

The Seven
Councils

The highest doctrinal authority of the Church, each convened in response to a specific theological crisis.

Primary Sources

The Documents
of the Tradition

A repository of Orthodox works essential to catechetical formation — annotated texts, commentary, and theological context.

Theological Glossary

Every term
defined

From hypostasis to homoousios, theosis to economia — every term, every icon explained, every part of the Divine Liturgy named.

Browse the Glossary →