Ken,I’m sorry, Doug, but I cannot agree. Sin cannot be defined apart from the involvement of the will. If I overpower you, put a gun in your hand, point it at someone and use your finger to pull the trigger, are you guilty of shooting him? Only if you were complicit. Mens Rea. Neither do I find in Scripture that the sin nature forces anyone to sin without some involvement of the will. It is the moral nature itself that is corrupted, and the moral nature is the seat of the moral will. The idea of a poor sinner who wants with all his heart to not sin but is forced to do things against his will is a myth.
I am not saying the will is not involved, nor am I saying that we are "held at gunpoint" to do something that we would not normally desire to do. Neither do I imply that we do not have culpability for what we do. This said, we have to take scripture for what it says, and Paul clearly states a complete bondage of will in so much that his desire to do otherwise is overcome.
14We know that the law is spiritual; but I am unspiritual, sold as a slave to sin. 15I do not understand what I do. For what I want to do I do not do, but what I hate I do. 16And if I do what I do not want to do, I agree that the law is good. 17As it is, it is no longer I myself who do it, but it is sin living in me. 18For I know that good itself does not dwell in me, that is, in my sinful nature. c For I have the desire to do what is good, but I cannot carry it out. 19For I do not do the good I want to do, but the evil I do not want to do—this I keep on doing. 20Now 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.
21So I find this law at work: Although I want to do good, evil is right there with me. 22For in my inner being I delight in God’s law; 23but I see another law at work in me, waging war against the law of my mind and making me a prisoner of the law of sin at work within me. 24What a wretched man I am!...
The whole purpose of this final volley is to put a final nail in the coffin of the "we are saved by works" argument. Who then "...will rescue me from this body that is subject to death? Thanks be to God, who delivers me through Jesus Christ our Lord!"
Paul's purpose is not to explain how or why we are culpable, but rather why obedience to the law is incapable of saving us! There is a paradoxical tension here because we are held captive yet still held responsible. Perhaps, and I am thinking out loud here, there is a Stockholm syndrome kind of thing here in which our total allegiance to our captor is developed from birth, but the divine remnants of the Imago Dei, when confronted by the truth of God's reality, holds us necessarily responsible for our action because we were not created to be sinful, yet have chosen, without full understanding, to wilfully sin?