Deuteronomy 9:1, 5

“Hear, O Israel: You are to cross over the Jordan today, and go in to dispossess nations greater and mightier than yourself, cities great and fortified up to heaven

It is not because of your righteousness or the uprightness of your heart that you go in to possess their land, but because of the wickedness of these nations that the LORD your God drives them out from before you, and that He may fulfill the word which the LORD swore to your fathers, to Abraham, Isaac, and Jacob.