Cyril, bishop of Jerusalem, was banished from his see on three occasions. With St. Athanasius and others, he belongs to the great champions of faith in the fight against Arianism. Famous as a teacher and preacher, he has left a series of catechetical instructions that constitute a priceless heirloom from Christian antiquity. Of the twenty-four extant discourses, nineteen were directed to catechumens during Lent as a preparation for baptism, while five so-called mystagogical instructions were given during Easter time to make the mysteries of Christianity better known to those already baptized.