'Amr ibn al-'As; Arab Conquest of Egypt; Arabs; Asceticism; Alexandria; Cairo (Egypt); Byzantine Empire; Coptic Church; Heraclius, Emperor of the East, ca. 575-641; History; Chalcedonian Church; Melchite Church; Orthodoxy
Saints; Bishops; Monks; Scetis; Homilies; John Colobos, Saint, ca. 339-409; Biographies; Apophthegmata Patrum; Coptic language - Bohairic dialect; Arabic literature