Romans 6:6-7 - For we know that our old self was crucified with him
so that the body of sin might be done away with, that we should no longer be
slaves to sin-- because anyone who has died has been freed from sin.
In this passage,
the phrase old self refers to who we were in Adam -
condemned sinners.
Paul pictures our old self as a body (of sin) that was crucified (and therefore
died) just as the physical body of Jesus Christ was crucified and
died.
This is an appropriate analogy, since it was through Christs crucifixion and
subsequent death that we were freed from the condemnation of our former state
in Adam!
Because our old self was crucified with Christ, we are now under obligation to put off
the deeds that accompanied that former sinful state and to walk according to
who we are in Christ, our new
self:
Galatians
Ephesians 4:22,24 - Put off your old self, which is being
corrupted by its deceitful desires . . . and to put on the new self, created to be like God
in true righteousness and holiness.
Colossians 3:9-10 - You have taken off your old self with its practices and
have put on the new self, which is being renewed in knowledge in the image of its
Creator.