Deuteronomy 7:9; Deuteronomy 7:10

9 "Know therefore that the LORD your God, He is God, the faithful God, who keeps His covenant and His lovingkindness to a thousandth generation with those who love Him and keep His commandments;

10 but repays those who hate Him to their faces, to destroy them; He will not delay with him who hates Him, He will repay him to his face.