The Apostle Paul wrote some warnings in the third chapter of Galatians, because the Christians there were trying some equally crazy things in their faith.  The Galatians were foolish in that they were trying to perfect in the flesh - what God began as a work of his Spirit.   So Paul, in order to show them just how foolish their thoughts were, takes them to the proof pudding that a man / a woman, is not made right with God by what they do, but simply by faith in Jesus Christ.  The proof --Abraham, the father of faith. Sermon conducted in ASL (American Sign Language) by Pastor Jeremiah Ziehr