On these subjects Cyril’s teaching is earnest, wise, and sympathetic:  he seeks to lead to repentance by gentle persuasion, and pleads for self-discipline as needful for the good of the soul Compare his teaching on Prayer, Procat. § 16; Cat. ix. 7:  and on Fasting Cat. iv. 27, 37; xviii. 17..  One whole Lecture is devoted to the necessity of thorough repentance for all past sins, and forgiveness of all offences Cat. i.:  another to the sure efficacy of repentance for the remission of sins Cat. ii..