Deuteronomy 7:8-10

Revised Standard Version Catholic Edition

⁸ but it is because the Lord loves you, and is keeping the oath which he swore to your fathers, that the Lord has brought you out with a mighty hand, and redeemed you from the house of bondage, from the hand of Pharaoh king of Egypt. ⁹ Know therefore that the Lord your God is God, the faithful God who keeps covenant and steadfast love with those who love him and keep his commandments, to a thousand generations, ¹⁰ and requites to their face those who hate him, by destroying them; he will not be slack with him who hates him, he will requite him to his face.