Romans 8:5-7

"For they that are after the flesh do mind the things of the flesh (the word here for `flesh' is another word for the old Adamic nature); but they that are after the Spirit the things of the Spirit." A person that is a child of God is going to mind the things of the Spirit.

"For to be carnally (another word for fleshly) minded is death (spiritual death, eternal doom); but to be spiritually minded is life and peace." And of course that life is eternal life.

"Because the carnal mind (the mind we're born with, that mind that we've inherited from Adam) is enmity against God: for it is not subject to the law of God, neither indeed can be."