Clement of Alexandria : But these dishonour the reverence of age, the head covered with grey hairs. It is not, it is not possible for him to show the head true who has a fraudulent head. "But ye have not so learned Christ; if so be that ye have heard Him, and have been taught by Him, as the truth is in Jesus: that ye put off, concerning the former conversation, the old man (not the hoary man, but him that is) corrupt according to deceitful lusts; and be renewed (not by dyeings and ornaments), but in the spirit of your mind; and put on the new man, which after God is created in righteousness and true holiness." — The Instructor Book 3 Gaius Marius Victorinus : To believe in Christ is to obtain immortality and receive eternal life. For he himself is life. He himself is light. He himself is eternity. He himself is the one who overcomes death. He has by overcoming death overcome us too through the fulfilled mystery of salvation. — EPISTLE TO THE Ephesians 2.4.20-21 John Chrysostom : "But ye did not so learn Christ," he continues, "if so be that ye heard Him, and were taught in Him even as truth is in Jesus." The expression, "If so be that ye heard Him," is not that of one doubting, but of one even strongly affirming: as he also speaks elsewhere, "If so be that it is a righteous thing with God to recompense affliction to them that afflict you." That is to say, It was not for these purposes that "ye learned Christ." — Homily on Ephesians 13 John Chrysostom : This then surely is to learn Christ, to live rightly; for he that lives wickedly knows not God, neither is known of Him; for hear what he saith elsewhere, "They profess that they know God, but by their works they deny Him." — Homily on Ephesians 13