Jerry Bridges, Transforming Grace, NavPress, 1991, p. 108.
Human morality and submission to God’s law are entirely different in principle, though they may appear to be similar in outward appearance. Human morality arises out of culture and family training and is based on what is proper and expected in the society we live in. It has nothing to do with God except to the extent that godly people have influenced that society. Submission to God’s law arises out of a love for God and a grateful response to His grace and is based on a delight in His law as revealed in Scripture. When the societal standard of morality varies from the law of God written in Scripture, we then see the true nature of human morality. We discover that it is just as hostile to the law of God as is the attitude of the most hardened sinner.
Jerry Bridges, Transforming Grace, NavPress, 1991, p. 108.