Abraham's faith was accounted to him as righteousness before the Law of Moses. The law saves no one. Only faith in the finished work of the Cross! We would not know sin if it were not for the law and Jesus is the fulfillment of the law. If you will confess with your mouth that Jesus Christ, is Lord. And if you will believe in your heart that God raised Him from the dead, then you shall be saved! Righteousness comes outside of the law for EVERYONE!