"Observe how bitterly he [Paul] speaks against their deceivers . . . 'I would that they which trouble you would cut the whole thing off' [Gal. 5:12] .... On this account he curses them, and his meaning is as follows: 'For them I have no concern, "A man that is heretical after the first and second admonition." If they will, let them not only be circumcised but mutilated' [Titus 3:10]. Where then are those who dare to mutilate sterilize themselves, seeing that they drawn down the apostolic curse, and accuse the workmanship of God, and take part with the Manichees?"