Deuteronomy 5:10

5:10 but I show covenant faithfulness to the thousands who choose me and keep my commandments.

Deuteronomy 7:9

7:9 So realize that the Lord your God is the true God, the faithful God who keeps covenant faithfully with those who love him and keep his commandments, to a thousand generations,

Deuteronomy 7:12

Promises of Good for Covenant Obedience

7:12 If you obey these ordinances and are careful to do them, the Lord your God will faithfully keep covenant with you as he promised your ancestors.