Name the letter that contrasts the vices of the "old man" with the virtues of the "new man."

The letter referred is the Ephesians and Colossians.

The old man is patterned from Adam (from Adam and Eve) and the features of the old man includes a corruptible, mortal body (flesh) and an unregenerate (darkened) spirit. On the other hand, the new man is patterned from Christ and its features includes an immortal, incorruptible body, while also being spiritually minded.