old self
The expression occurs elsewhere, in (Ephesians 4:22); (Colossians 3:9), and always means the man of old, corrupt human nature, the inborn tendency to evil in all men. In (Romans 6:6), it is the natural man himself; in (Ephesians 4:22); (Colossians 3:9), his ways. Positionally, in the reckoning of God, the old man is crucified, and the believer is exhorted to make this good in experience, reckoning it to be so by definitely "putting off" the old man and "putting on" the new; (Colossians 3:8-14); (Colossians 3:4); (Colossians 3:24);
( See Scofield) - (Ephesians 4:24), note 3.