Deuteronomy 9:5-6

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. 9:6 Understand, therefore, that it is not because of your righteousness that the Lord your God is about to give you this good land as a possession, for you are a stubborn people!