Didymus the Blind was a major Christian theologian and teacher in Alexandria during the 4th century CE. He lost his sight as a young child but became a profoundly learned scholar through oral teaching and tactile learning aids. He led the Catechetical School in Alexandria for approximately fifty years, teaching influential students like Jerome and Rufinus. Didymus lived as a dedicated ascetic, never marrying, and was a staunch defender of the Nicene understanding of God.
He was an extraordinarily prolific writer, though many of his works are now lost. His writings included extensive commentaries on biblical books such as Genesis, Psalms, and the Gospel of John, applying the allegorical interpretive methods associated with Origen. He also authored doctrinal treatises, including On the Holy Spirit, which defended the divinity of the Spirit, and a systematic work On the Trinity.
Didymus is historically significant as a central intellectual link between the theology of Origen and later Christian tradition. His massive exegetical output helped shape biblical interpretation, and his doctrinal works contributed to the development of Trinitarian theology. Despite his contemporary prestige, his association with Origen’s thought led to his posthumous condemnation in the 6th century, causing many of his Greek works to be lost. Their rediscovery on papyri in the 20th century has revived scholarly interest in his contributions.
Available Works
Κατὰ Μανιχαίων
Against the Manichaeans
19 passages
Σύντομος Ἔκθεσις εἰς τὰς Καθολικὰς Ἐπιστολάς
Brief Expositithe Catholic Letters
70 passages
Ὑπομνήματα εἰς τὸν Ἐκκλησιαστὴν αʹ–ηʹ
Commentaries-Ecclesiastes 1.1–8
44 passages
Ὑπομνήματα εἰς τὸν Ἐκκλησιαστὴν
Commentaries-Ecclesiastes 3–4.12
71 passages
Ὑπομνήματα εἰς τὸν Ἐκκλησιαστὴν
Commentaries-Ecclesiastes 9.8–10.20
43 passages
Ὑπομνήματα εἰς τὸν Ἰώβ
Commentaries-Job
34 passages
Ὑπομνήματα εἰς τὸν Ἰώβ
Commentaries-Job 12.1–16.8a
107 passages
Ὑπομνήματα εἰς τὸν Ἰώβ Α–Δ
Commentaries-Job 1–4
112 passages
Ὑπομνήματα εἰς τὸν Ἰώβ
Commentaries-Job 5.1–6.29
74 passages
Ὑπομνήματα εἰς τὸν Ἰώβ
Commentaries-Job 7.20c–11
90 passages
Ὑπομνήματα εἰς τοὺς Ψαλμοὺς κ–κα
Commentaries-Psalms 20–21
56 passages
Ὑπομνήματα εἰς τοὺς Ψαλμοὺς κβ–κϛ.ι
Commentaries-Psalms 22–26.10
56 passages
Ὑπομνήματα εἰς τοὺς Ψαλμοὺς κθ–λδ
Commentaries-Psalms 29–34
79 passages
Ὑπομνήματα εἰς τοὺς Ψαλμοὺς λεʹ–λθʹ
Commentaries-Psalms 35–39
51 passages
Ὑπομνήματα εἰς τοὺς Ψαλμοὺς λςʹ.ιεʹ–ιθʹ
Commentaries-Psalms 36.15–19
2 passages
Ὑπομνήματα εἰς τοὺς Ψαλμοὺς μʹ–μδʹ δʹ
Commentaries-Psalms 40–44.4
51 passages
Ὑπομνήματα εἰς τὸν Ὀκτάτευχον καὶ Βασιλεῖς
Commentaries-the Octateuch and Kings
2 passages
Ὑπομνήματα εἰς τὸν Ζαχαρίαν
Commentaries-Zechariah
1267 passages
Ὑπόμνημα εἰς τὸν Ἐκκλησιαστὴν ια–ιβ
Commentary-Ecclesiastes 11–12
47 passages
Ὑπόμνημα εἰς τὸν Ἐκκλησιαστὴν ε–ϛ
Commentary-Ecclesiastes 5–6
38 passages
Ὑπόμνημα εἰς τὸν Ἐκκλησιαστὴν
Commentary-Ecclesiastes 7–8.8
45 passages
Διάλογος Μοντανιστοῦ καὶ Ὀρθοδόξου
Conversation of the Montanist and the Orthodox
10 passages
Ἀπόσπασμα εἰς τὴν πρὸς Ἑβραίους
Fragment-the Letter to the Hebrews
2 passages
Ἀποσπάσματα ἐκ Ἀντωνίου Μελίσσης
Fragments from Antonius Melissa, Common Places
9 passages
Ἀποσπάσματα ἐκ Μαξίμου Ὁμολογητοῦ
Fragments from Maximus Confessor, Common Places
8 passages
Ἀποσπάσματα εἰς τὴν πρὸς Κορινθίους Α'
Fragments-First Letter to the Corinthians
9 passages
Ἀποσπάσματα εἰς τὸν Ἰωάννην
Fragments-John
17 passages
Ἀποσπάσματα εἰς τὴν πρὸς Ῥωμαίους
Fragments-Letter to the Romans
6 passages
Ἀποσπάσματα εἰς τὰς Παροιμίας
Fragments-Proverbs
22 passages
Ἀποσπάσματα εἰς τοὺς Ψαλμούς
Fragments-Psalms
1162 passages
Ἀποσπάσματα εἰς τὴν πρὸς Κορινθίους Β'
Fragments-Second Letter to the Corinthians
31 passages
Περὶ τοῦ Ἀσωμάτου
On the Incorporeal
1 passages
Περὶ Τριάδος
On the Trinity
374 passages
Περὶ Τριάδος
On the Trinity
208 passages
Περὶ Τριάδος
On the Trinity
88 passages
Περὶ Τριάδος
On the Trinity
118 passages