4th century8 canons
The Canonical Epistle of St Gregory of Nyssa
Eight canons on the healing of the three powers of the soul through penance.
Source & text status
NPNF 2nd ser., vol. 14 (pending); summaries pending.
Full canonical texts, Greek and public domain English, in St Nikodemos' Pēdalion and in Rhalles and Potles, Σύνταγμα; the public domain English of the councils in Nicene & Post-Nicene Fathers, 2nd series, vol. 14.