I do not understand what I do. For what I want to do I do not do, but what I hate I do. And if I do what I do not want to do, I agree that the law is good. As it is, it is no longer I myself who do it, but it is sin living in me. For I know that good itself does not dwell in me, that is, in my sinful nature. For I have the desire to do what is good, but I cannot carry it out. For I do not do the good I want to do, but the evil I do not want to do—this I keep on doing. Now if I do what I do not want to do, it is no longer I who do it, but it is sin living in me that does it. ~Romans 7:15-20
But here is a trustworthy saying that deserves full acceptance:
Christ Jesus came into the world to save sinners—of whom I am the worst. But for that very reason I was shown mercy so that in me, the worst of sinners, Christ Jesus might display his immense patience as an example for those who would believe in him and receive eternal life. ~1 Timothy 1:15-16

The habitual sinner reminds me of the Pharaoh in Moses’ time. Pharaoh kept being shown signs and wonders by God, and Pharaoh’s Egypt would be stricken by plagues until he would relent and grant the Hebrews their exit, only to change his mind again. Over and over this happened until God finally struck Pharaoh’s son dead in the worst plague of all. Pharaoh only then finally allows the Hebrews to flee. But as they were leaving Egypt, Pharaoh changed his mind yet again and that is when God–through Moses–parted the sea until the Hebrews passed through. Then He let the waters go and all Pharaoh’s men drowned. God hardened Pharaoh’s heart and Pharaoh continued to harden his heart. He did not want to change, until it didn’t matter anymore.
