For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast. For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them. -Ephesians 2:8
We are saved by grace to produce good works. The good works then becomes the results of faith and a proof that indeed faith does exist in us.