“Make your fold with the sheep; flee from the wolves: depart not from the Church,” Cyril admonished catechumens surrounded by heresy. These were prophetic words for Cyril was to be hounded by enemies and heretics for most of his life, and although they could exile him from his diocese he never left his beloved Church. Cyril’s life began a few years before Arianism (the heresy that Jesus was not divine or one in being with the Father) and he lived to see its suppression and …