Deuteronomy 6:18

6:18 Do whatever is proper and good before the Lord so that it may go well with you and that you may enter and occupy the good land that he promised your ancestors,

Deuteronomy 9:5

9:5 It is not because of your righteousness, or even your inner uprightness, that you have come here to possess their land. Instead, because of the wickedness of these nations the Lord your God is driving them out ahead of you in order to confirm the promise he made on oath to your ancestors, to Abraham, Isaac, and Jacob.