Deuteronomy 5:10; Deuteronomy 7:9; Deuteronomy 7:12

10 And shewing mercy unto thousands of them that love me and keep my commandments.

9 Know therefore that the LORD thy God, he is God, the faithful God, which keepeth covenant and mercy with them that love him and keep his commandments to a thousand generations;

12 Wherefore it shall come to pass, if ye hearken to these judgments, and keep, and do them, that the LORD thy God shall keep unto thee the covenant and the mercy which he sware unto thy fathers: