The Word of God teaches that the new birth is essential and that "The Spirit
itself beareth witness with our spirit, that we are the children of God" (Romans 8:16). Being born again
is like becoming a semi-detached house - I have my old nature (very strong) and my new nature (new born). The old nature
must be crucified/mortified by my setting my will, God's grace, and by and through His power; so that the new nature can
grow. Having two natures is like living in an 'enemy body'.
"Jesus answered and said unto him, Verily, verily,
I say unto thee, Except a man be born again, he cannot see the kingdom of God."
2 Corinthians 5:17:
"Therefore if any man be in Christ, he is a new creature:
old things are passed away; behold, all things are become new."
"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."
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."
they that are Christ's have crucified the flesh with the affections and lusts."
if ye live after the flesh, ye shall die: but if ye through the Spirit do mortify the deeds of the body,
ye shall live."
"Mortify therefore your members which are upon the earth;
fornication, uncleanness, inordinate affection, evil concupiscence, and covetousness, which is idolatry:"
"I beseech you therefore, brethren, by the mercies of God, that ye present
your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service."