2 Corinthians 5:17 (KJV)
17 Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new.
Romans 6:5-7 (KJV)
5 For if we have been planted together in the likeness of his death, we shall be also in the likeness of his resurrection:
6 Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin.
7 For he that is dead is freed from sin.
Galatians 2:20 (KJV)
20 I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.