I hope I can work this whole quote in to my sermon...if not, here it is-
So there is the thesis. There are fundamentally only two ways of thinking about how people can be right with God: by what they do or by what Christ does for them. It matters not if in the former case, as would have been true for these judaizers, the works that were required for justification were combined with faith in Christ. It is all or nothing. Any works at all, makes it justification by works. It is works of any kind, to any degree, or Christ alone. That is the alternative. That is what makes Christianity so radical a message and a philosophy of life. It sets itself against not only every other religious idea, but the natural tendency of every human heart, to hold salvation -- at least to some degree -- in one's own hands.
- Robert Rayburn