The Church Fathers of the Byzantine East

Orthodox theology is not systematic in the western scholastic sense. It has no Summa, no single authoritative textbook, and no equivalent of the medieval western synthesis of Aristotle and revelation. What it has instead is a body of writings by a group of bishops, monks and theologians, mostly of the fourth to eighth centuries, whose work is treated as the normative expression of the faith.

These are the Fathers. The Greek term is patristic, and the Byzantine attitude to them was one of continuous engagement: later theologians did not argue with the Fathers, they argued about which Father meant what and how to apply him. A Byzantine theological treatise is typically a chain of quotations — a florilegium — with commentary, and a controversy was frequently settled by producing a better set of patristic citations than one’s opponent.

What Made Someone a Father

Four criteria were applied loosely: orthodoxy of doctrine, holiness of life, antiquity, and acceptance by the church. Origen fails the first, brilliantly and influentially; Tertullian fails it in the west. The list was never closed, and Byzantine writers extended it forward — Symeon the New Theologian in the eleventh century and Gregory Palamas in the fourteenth are treated as Fathers in Orthodox usage.

The Fourth Century

Athanasius (c. 296–373)

Bishop of Alexandria, exiled five times, the defender of the Nicene homoousios through fifty years when it was frequently the losing position. His On the Incarnation states the central Greek patristic idea in a sentence: God became man so that man might become God — the doctrine of theosis, deification, which runs through everything afterwards.

He was also, through his Life of Antony, the man who made Egyptian monasticism famous across the Mediterranean, as Byzantine monasticism describes.

The Cappadocians

Basil of Caesarea, his brother Gregory of Nyssa, and their friend Gregory of Nazianzus produced the settled Trinitarian language of “one essence, three hypostases” and carried the Nicene position to victory at the Council of Constantinople in 381. Their individual contributions, and the remarkable family around them, are treated in the Cappadocian Fathers.

John Chrysostom (c. 347–407)

The greatest preacher of the ancient church and the most widely read of the Fathers in Byzantium — more manuscripts of Chrysostom survive than of any other Greek Christian author. He was a moralist and exegete rather than a speculative theologian, and his homilies on the New Testament are close, practical, and frequently ferocious about wealth. His career and downfall are described in John Chrysostom.

Cyril of Alexandria (c. 376–444)

The architect of the Alexandrian Christology that triumphed at Ephesus in 431. A formidable exegete and a ruthless ecclesiastical politician, whose reputation has never recovered from his involvement, however indirect, in the murder of the philosopher Hypatia in 415. His formulations are the foundation of everything in the Christological controversies.

The Mystical Tradition

Evagrius Ponticus (345–399)

A monk of the Egyptian desert who produced the first systematic analysis of the monastic inner life: the eight principal thoughts or passions (the ancestor of the western seven deadly sins), the stages of prayer, and the doctrine of apatheia, dispassion.

He was condemned in 553 for his Origenist speculations about pre-existent souls, with the result that his works circulated afterwards under other names — often that of Nilus of Ancyra — and remained enormously influential while being formally out of bounds. Byzantine spirituality is Evagrian in its practical psychology whether or not it says so.

Pseudo-Dionysius the Areopagite

A corpus of four treatises and ten letters written around 500 by an author claiming to be the Athenian convert of St Paul in Acts 17. The attribution is false — the works depend on the Neoplatonist Proclus, who died in 485 — and was accepted almost universally until the Renaissance.

The Dionysian corpus gave Byzantine and western theology the language of apophatic or negative theology (God is known by denying of him everything we can conceive), the hierarchies of angels, and a vocabulary for the symbolic reading of the liturgy and of church architecture. Its influence is out of all proportion to its size.

Maximus the Confessor (c. 580–662)

The most philosophically ambitious of the Greek Fathers, who synthesised Evagrian ascetic psychology, Dionysian metaphysics and Chalcedonian Christology into a single vision, and who died as a result of refusing the imperial compromise on Christ’s will. Treated separately in Maximus the Confessor.

The Systematisers

John of Damascus (c. 675–749)

Writing from a monastery near Jerusalem, under Umayyad rule and therefore out of reach of the iconoclast emperors, John produced two things of lasting importance: the definitive theological defence of images, and the Fount of Knowledge, whose third part, On the Orthodox Faith, is the nearest thing Byzantine theology has to a systematic textbook. It was translated into Latin in the twelfth century and used by Aquinas. See John of Damascus.

Theodore the Studite (759–826)

Abbot of the Stoudios monastery in Constantinople, the leader of the second phase of resistance to iconoclasm, a reformer of monastic life whose rule shaped Byzantine and later Russian monasticism, and a vigorous defender of the church’s independence from imperial interference — a position that put him in exile three times.

The Later Fathers

Photios (c. 810–893)

Patriarch, scholar, and the author of the Bibliotheca, a set of reviews of 280 books he had read, many of which are now lost and known only from his summaries. He framed the Orthodox case against the filioque addition to the Creed. See Patriarch Photios.

Symeon the New Theologian (949–1022)

Insisted on the conscious, experienced perception of divine light as the normal condition of Christian life, and was controversial for it. The title “the New Theologian” places him alongside John the Evangelist and Gregory of Nazianzus, the only other two men the Orthodox church calls “the Theologian.”

Gregory Palamas (1296–1359)

Defended the hesychast monks’ claim to experience the uncreated light of God, and articulated the distinction between God’s unknowable essence and his energies, in which creatures genuinely participate. Endorsed by councils in 1341, 1347 and 1351, and the last major doctrinal development the Orthodox Church has formally adopted. See hesychasm.

How to Read Them

Two practical observations for anyone approaching this material for the first time.

The Fathers wrote occasionally, not systematically. Almost every major text is a response to a specific controversy, a sermon preached to a particular congregation, or a letter to a named correspondent. Reading them as if they were writing timeless treatises produces misunderstanding.

And they disagree. The patristic consensus is real on the central doctrines and thin on much else; Gregory of Nyssa’s universalism, Chrysostom’s social teaching and Maximus’s cosmology are not interchangeable. The Byzantine practice of assembling citations tended to obscure this, and a modern reader is better served by reading one Father at length than by reading anthologies of all of them.

Where to Start Reading

The patristic corpus is enormous and most of it is available in English. For a reader who wants to go to the texts rather than read about them, a short list does more than a long one.

Work	Author	Why
On the Incarnation	Athanasius	Short, foundational, states the doctrine of deification
On the Holy Spirit	Basil the Great	Argues from worship to doctrine; the method is characteristic
The Life of Moses	Gregory of Nyssa	Mystical ascent; the most original mind of the four
Five Theological Orations	Gregory of Nazianzus	The best Trinitarian writing in Greek
Homilies on Matthew (selections)	John Chrysostom	Preaching at its most direct
On the Divine Names	Pseudo-Dionysius	Difficult, and the source of apophatic theology
Chapters on Love	Maximus the Confessor	Short, aphoristic, the accessible entry to a hard writer
On the Divine Images	John of Damascus	The case for icons, argued tightly

Most of these run to under two hundred pages. Several are in the Popular Patristics series in cheap paperback translations with facing introductions, which is the practical route in.

The Florilegium Habit

Byzantine theological method deserves a note, because it explains the shape of almost every Byzantine religious text.

An argument was made by assembling citations. A florilegium — literally a gathering of flowers — is a collection of patristic passages arranged to establish a position, and the genre dominates Byzantine theological writing from the sixth century onward.

Councils worked this way. At the Second Council of Nicaea, the iconophile case was made largely by reading patristic texts into the record; the iconoclast council of Hieria had done the same thing with a different selection, and part of the 787 proceedings consisted of demonstrating that some of the iconoclast citations were forged or truncated.

The method has obvious weaknesses. It encourages proof-texting, it flattens the differences between Fathers writing centuries apart on different questions, and it puts a premium on having the better library. Forged attributions circulated widely — the Apollinarian texts passing as Athanasius poisoned two centuries of Christological argument, and the entire Dionysian corpus passed as apostolic.

It also has a real logic. If doctrine is received rather than invented, then the test of a theological claim is whether the church has always held it, and the way to demonstrate that is to show the Fathers saying so.

The Modern Retrieval

Twentieth-century Orthodox theology defined itself by a return to the Fathers, and the movement shaped how the whole corpus is now read.

Georges Florovsky, writing from the 1930s, argued for a “neo-patristic synthesis”: Orthodox theology should free itself from the categories of western scholasticism and Protestant liberalism that had dominated Russian academic theology since Peter the Great, and think again from the Greek Fathers directly.

Vladimir Lossky’s Mystical Theology of the Eastern Church (1944) presented apophatic theology and the essence–energies distinction of Palamas as the defining Orthodox contribution. John Meyendorff’s work on Palamas and Byzantine theology followed, and Kallistos Ware’s The Orthodox Church (1963) carried the framework to English-speaking readers.

The synthesis has since been questioned from inside Orthodoxy — for constructing a tidier tradition than the sources support, for overstating the east–west contrast, and for treating “the Fathers” as more unanimous than they were. That critique is itself now a substantial literature.

For the general reader the practical consequence is that most accessible books on Byzantine theology were written within this framework, and it is worth knowing that it is a twentieth-century framework rather than the tradition speaking for itself.

• The Cappadocian Fathers — the Trinitarian settlement
• John Chrysostom — the preacher
• Maximus the Confessor — the philosopher
• John of Damascus — the systematiser
• The Seven Ecumenical Councils — where their formulations became law
• Hesychasm — the last chapter of the tradition
• Byzantine Literature — the wider written culture