Lay aside the old man
The old man is who we were in Adam. God attributed Adam’s trespass and sin to all mankind. Therefore the resulting deaths were pass along also.
The trespass resulted in spiritual death and the sin resulted in physical death. Death means separation, not annihilation. Spiritual death is separation from God; physical death is the separation of the soul and spirit from the physical body.
all of you to put off according to the former conduct the old man, the one being corrupted according to the lusts of the deceitfulness, and to begin again1; in the spirit of your mind, Ephesians 4:22, 23
1 A legal term that means to start a contract again – or renew.