Church replacing Israel: If the church was to replace Israel, why is it not mentioned in the Old Testament (old vs new covenants? [Jeremiah 11:16, Galatians 3: 14-16]. Old Testament Saved by Works: In the Old Testament, were the faithful saved by works rather than grace? [Hebrews 11, Micah 6:6-8, Psalm 51:17, Psalm 40:6-8].