Work dossier · summary and historical context
The Liber de cognitione dei is a theological treatise by Gregory of Nyssa on the knowledge of God, written in a philosophical and ascetic register typical of his mature thought. The work argues for a providential creator against atomist and elemental cosmogonies, using rhetorical questions and scriptural references. Its title is not original but appears in later manuscripts, possibly reflecting a thematic summary. The edition is based on the Khazarzar digital source, which reproduces the text from Migne's Patrologia Graeca, itself dependent on late medieval manuscripts. The treatise was cited at the Second Council of Nicaea (787) in support of icon veneration, though its original context is not directly about images.
The Liber de cognitione dei is significant for its philosophical argumentation against atomist cosmogonies, reflecting Gregory's engagement with Epicurean thought. It also illustrates the patristic use of rhetorical questions and scriptural exegesis to defend a providential creator. Its citation at the Second Council of Nicaea shows its later authority in Byzantine iconophile theology, despite its original context not being about images.
The work is generally placed in the 370s–390s, during Gregory's episcopate in Nyssa (Cappadocia), but no external evidence fixes it precisely. It belongs to the Greek patristic tradition, written in a philosophical and ascetic register typical of Gregory's mature thought. The text survives through late medieval manuscripts, with the edition based on Migne's Patrologia Graeca, which lacks a critical apparatus and may contain scribal errors. The treatise was cited at the Second Council of Nicaea (787) in support of icon veneration, indicating its later reception in Byzantine iconophile circles. Its transmission is uncertain, and the title is not original, appearing only in later manuscripts.
Apparatus · what the pipeline recorded
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