'Old Man' in the Bible

And Zacharias said to the angel, Whereby shall I know this? For I am an old man, and my wife advanced in years.

Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that we might no longer serve sin.

concerning your former conversation, the old man, which is corrupt, according to the deceitful desires:

Lie not one to another, seeing ye have put off the old man with his deeds,