The unrighteousness of men is never more evident than when men refuse to acknowledge that God is the supreme person of the universe. How do they do that ? In an age of scientific evolution, which is just an extension of the age old Pantheism that confuses the eternal, self-existent, all-powerful God with His creation, it is painfully obvious.
Yes, we are to work out our salvation but it is GOD that works within us to work and to will.
To live up to basic morality is one thing, but to live up to the standards that Jesus sets forth is an entirely different matter. It's one thing to be nice and still another to turn the other cheek, go the extra mile, or give someone your shirt when he takes your coat.