Deuteronomy 7:9

9 So know that the Lord your God is God, the faithful God. He will keep his agreement of love for a thousand lifetimes for people who love him and obey his commands.

Deuteronomy 7:9 Meaning and Commentary

Ver. 9 Know therefore that the Lord thy God, he is God
The only true and living God, and not the idols of the Gentiles, who are false and lifeless ones, and therefore not the proper objects of adoration:

the faithful God, which keepeth covenant and mercy;
as appeared by fulfilling the promise made to their fathers, in bringing them out of Egypt, and now them to the borders of the land of Canaan given them for an inheritance:

with them that love him, and keep his commandments, to a thousand
generations;
see ( Exodus 20:6 ) which are not the causes or conditions of his covenant and mercy, nor of his keeping them, but descriptive of the persons that enjoy the benefit thereof.

Deuteronomy 7:9 In-Context

7 The Lord did not care for you and choose you because there were many of you -- you are the smallest nation of all.

8 But the Lord chose you because he loved you, and he kept his promise to your ancestors. So he brought you out of Egypt by his great power and freed you from the land of slavery, from the power of the king of Egypt.

9 So know that the Lord your God is God, the faithful God. He will keep his agreement of love for a thousand lifetimes for people who love him and obey his commands.

10 But he will pay back those people who hate him. He will destroy them, and he will not be slow to pay back those who hate him.

11 So be careful to obey the commands, rules, and laws I give you today.