The life of St Peter II of Sebaste
Among his brothers and sisters were Basil the Great, Gregory of Nyssa, the jurist Naucratius, and Macrina herself, making him the youngest member of a family that would give the Church some of its most significant fourth-century voices. Basil ordained him a presbyter, and around 380 he was raised to the bishopric of Sebaste in Armenia.
He took part in the Second Ecumenical Council held at Constantinople in 381, standing there alongside his brothers against the Arian and Macedonian teachings the council had gathered to answer. His influence reached into his brothers' own theological work as well: at his particular urging, Gregory of Nyssa wrote his treatise Against Eunomius in defense of Basil's earlier book of the same title, and later, again at Peter's request, composed a further work on the six days of creation to defend and round out Basil's own writing on that subject against misreading. Beyond this steady partnership with his brothers in defending Orthodox teaching, little else survives of his particular activity as bishop. He reposed in 391 and was honored as a saint not long afterward.
