It seems that I think about this from time to time and never really get it settled. Do believers willfully sin? I'm thinking of David and Bathsheeba. He had to know this was wrong. I know he was punished for it, as we are each responsible for the sins we commit. But then, God used David and Bathsheeba in the line of Christ's birth. Can we be fighting sin as hard as we can, but be actually fighting the will of God? Is the following statement true? (I can't remember where I first heard it): "God regulates circumstances and the degree of His grace to bring about the preferences which will illicit the choices He has ordained."