NET
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,
Darby
9 And thou shalt know that Jehovah thy God, he is God, the faithful God, who keepeth covenant and mercy to a thousand generations with them that love him and keep his commandments;
KJV
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;