Romans 1:5
By whom we have received grace and apostleship, for obedience to the faith among all nations, for His name.
Paul explicitly demonstrates that grace is received FOR obedience to the faith. Is it because of obedience to the faith or received in order to produce obedience to the faith?
There are three kinds if works that men tend to attempt to produce salvation. Keeping the law of Moses, human merit, and obedience to God. The following scripture demonstrates that grace is received for obedience to the faith.
James demonstrates that a man is 'Justified by works and not by faith alone'. What kind of work justifies a man. It is not Human merit nor is it the keeping of the Law of Moses. A man is justified and saved by the 'work' if you will, of obedience to the faith!