Great Catechism
For For anyone who wants one book that lays out the whole faith as the Cappadocians held it, Trinity, Incarnation, baptism and eucharist; the best first serious work of his to read, after the Life of Macrina.
Length About 29,500 words, about 2 hours.
Gregory of Nyssa wrote this comprehensive theological treatise in the late fourth century as a handbook for clergy engaged in catechetical instruction and apologetic dialogue. Emerging from the theological ferment following the Council of Constantinople in 381, the work addresses the practical need for Christian teachers to articulate orthodox faith coherently to both inquirers and opponents, particularly Jews, pagans, and various heretical groups that challenged Nicene Christianity.
The treatise unfolds a systematic presentation of Christian doctrine through rational argument and scriptural exegesis. Gregory begins by establishing the reasonableness of believing in one God, then proceeds to demonstrate the necessity of the Incarnation through philosophical reasoning about divine justice, human nature, and the requirements of salvation. His famous analogy of God's deception of the devil through the humanity of Christ—likening it to a fishhook concealed by bait—attempts to explain how divine justice operates in redemption. The work culminates in extended discussions of baptism and the Eucharist, where Gregory employs sophisticated philosophical categories to explain how these sacraments effect spiritual transformation in believers. Throughout, he weaves together Platonic philosophical concepts with biblical theology, creating arguments designed to persuade educated opponents while instructing Christian teachers.
This catechism has endured as one of the most intellectually rigorous presentations of fourth-century orthodox Christianity, influencing both Eastern and Western theological development. Gregory's integration of philosophical reasoning with scriptural authority established a model for apologetic theology that shaped subsequent Christian intellectual culture. His nuanced discussions of human nature, divine justice, and sacramental theology continue to inform contemporary theological reflection.
Who should read this: Pastors, theology students, and educated Christians interested in patristic theology and the intellectual foundations of orthodox Christianity will find this work essential. Those uncomfortable with philosophical reasoning applied to Christian doctrine or seeking devotional rather than systematic theological material should look elsewhere.
Editions
External off-site sources
Free downloads
- OTHER The Great Catechism (New Advent) PDTrans. William Moore and Henry Austin WilsonSource: New Advent ↗The 1893 Nicene and Post-Nicene Fathers translation by William Moore and Henry Austin Wilson, on New Advent, with the prologue and forty chapters under their NPNF headings and some notes. A plain Victorian rendering of his clearest book; suits any reader.
- OTHER The Great Catechism (CCEL) PDTrans. William Moore and Henry Austin Wilson · 1893William Moore and Henry Austin Wilson's 1893 translation on the Christian Classics Ethereal Library's reading pages for volume 5 of the Nicene and Post-Nicene Fathers, with the headings for the prologue and forty chapters and the NPNF footnotes kept. The same text as New Advent's, free of its revisions; for any reader, and the one book of his to read for the doctrine.
- OTHER The Great Catechism (Wikisource) PDTrans. William Moore and Henry Austin Wilson · 1893William Moore and Henry Austin Wilson's 1893 translation in Wikisource's transcription of the Nicene and Post-Nicene Fathers, second series, volume 5: one page for each chapter, footnotes kept, plain text that reads well on a phone. For any reader, and the one book of his to read for the doctrine.
- PDF The Great Catechism (Internet Archive (NPNF2-05 scan)) PDTrans. William Moore and Henry Austin Wilson · 1893A scan of the 1893 volume of the Nicene and Post-Nicene Fathers devoted to Gregory of Nyssa (University of Toronto copy), with Moore and Wilson's translations, the prolegomena and the notes as printed. Page images of the whole book; this work is in it, for readers who want the text as published.
- PDF The Great Catechism (Internet Archive (Srawley 1903, Greek text)) PD Greek1903J. H. Srawley's edition of the Greek text (Cambridge Patristic Texts, 1903), with a long English introduction, an apparatus and English notes but no translation. The standard text before Mühlenberg; for readers of Greek, and for anyone who wants the introduction.Much harder than the work: Greek text with English notes, no translation
- PDF The Great Catechism (Internet Archive (Krabinger 1838)) PD Greek and Latin1838J. G. Krabinger's edition of the Greek text with a Latin translation and notes (1838), the edition Migne reprinted; a Google scan from Oxford. For readers of Greek or Latin.Much harder than the work: Greek and Latin only, no English translation
- PDF The Great Catechism (Internet Archive (Migne PG 45)) PD Greek and Latin1863The Greek text with Migne's Latin translation in parallel columns, in volume 45 of the Patrologia Graeca (Paris, 1863), scanned whole on the Internet Archive; this work is at columns 9-106. For readers of Greek or Latin.Much harder than the work: Greek and Latin only, no English translation