"And I know that nothing good lives in me, that is, in my sinful nature. I want to do what is right, but I can't. I want to do what is good, but I don't. I don't want to do what is wrong, but I do it anyway. But if I do what I don't want to do, I am not really the one doing wrong; it is SIN living IN ME that does it.
I have discovered this principle of life—that when I want to do what is right, I inevitably do what is wrong. I love God's law with all my heart. But there is another power WITHIN ME that is at war with my mind. This power makes me a slave to the sin that is still within me. Oh, what a miserable person I am! Who will free me from this life that is dominated by sin and death? Thank God! The answer is in Jesus Christ our Lord."
(Romans 7:18-25)

"Don't let anyone capture you with empty philosophies and high-sounding nonsense that come from human thinking and from the spiritual powers of this world, rather than from Christ. For in Christ lives all the fullness of God in a human body.10 So you also are complete through your union with Christ, who is the head over every ruler and authority.

When you came to Christ, you were 'circumcised,' but not by a physical procedure. Christ performed a spiritual circumcision—the cutting away of your sinful nature. For you were buried with Christ when you were baptized. And with him you were raised to new life because you trusted the mighty power of God, who raised Christ from the dead.

You were dead because of your sins and because your sinful nature was not yet cut away. Then God made you alive with Christ, for he forgave all our sins. He canceled the record of the charges against us and took it away by nailing it to the cross. In this way, he disarmed the spiritual rulers and authorities. He shamed them publicly by his victory over them on the cross."
(Colossians 2:8-15)

Ye have heard that it was said by them of old time, Thou shalt not commit adultery: But I say unto you, That whosoever LOOKETH on a woman to LUST after her hath COMMITTED ADULTERY with her already IN HIS HEART."
(Matthew 5:27-28)

"Whosoever hateth his brother is a murderer: and ye know that no murderer hath eternal life abiding in him."
(1 John 3:15)

"Thou hast neither part nor lot in this matter: for thy HEART is not right in the sight of God.
Repent therefore of this thy wickedness, and pray God, if perhaps the THOUGHT OF THINE HEART may be forgiven thee.
For I perceive that thou art in the gall of bitterness, and in the BOND of iniquity."
(Acts 8:21-23)

"Ye stiffnecked and uncircumcised in HEART and ears, ye do always resist the Holy Ghost: as your fathers did, so do ye."
(Acts 7:51)

"But he is a Jew, which is one inwardly; and circumcision is that of the HEART, in the SPIRIT, and not in the letter; whose praise is not of men, but of God."
(Romans 2:29)

"Once you were dead because of your disobedience and your many sins. You used to live in sin, just like the rest of the world, obeying the devil—the commander of the powers in the unseen world. He is the spirit at work in the hearts of those who refuse to obey God. All of us used to live that way, following the passionate desires and inclinations of our sinful nature. By our very nature we were subject to God's anger, just like everyone else."
(Ephesians 2:1-3)

"Since you have heard about Jesus and have learned the truth that comes from him, throw off your old sinful nature and your former way of life, which is corrupted by lust and deception. Instead, let the Spirit renew your thoughts and attitudes. Put on your new nature, created to be like God—truly righteous and holy."
(Ephesians 4:21-24)

"So put to death the sinful, earthly things lurking within you. Have nothing to do with sexual immorality, impurity, lust, and evil desires. Don't be greedy, for a greedy person is an idolater, worshiping the things of this world. Because of these sins, the anger of God is coming. You used to do these things when your life was still part of this world. But now is the time to get rid of anger, rage, malicious behavior, slander, and dirty language. Don't lie to each other, for you have stripped off your old sinful nature and all its wicked deeds. Put on your new nature, and be renewed as you learn to know your Creator and become like him."
(Colossians 3:5-10)