Romans 7:19-25

19 For the good which I desire, I don't do; but the evil which I don't desire, that I practice.  20 But if what I don't desire, that I do, it is no more I that do it, but sin which dwells in me.  21 I find then the law, that, to me, while I desire to do good, evil is present.  22 For I delight in God's law after the inward man,  23 but I see a different law in my members, warring against the law of my mind, and bringing me into captivity under the law of sin which is in my members.  24 What a wretched man I am! Who will deliver me out of the body of this death?  25 I thank God through Jesus Christ, our Lord! So then with the mind, I myself serve God's law, but with the flesh, the sin's law.

Romans 8:1-4

1 There is therefore now no condemnation to those who are in Christ Jesus, who don't walk according to the flesh, but according to the Spirit.  2 For the law of the Spirit of life in Christ Jesus made me free from the law of sin and of death.  3 For what the law couldn't do, in that it was weak through the flesh, God did, sending his own Son in the likeness of sinful flesh and for sin, he condemned sin in the flesh;  4 that the ordinance of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.