Deuteronomy 9
3 Ref Be certain then today that it is the Lord your God who goes over before you like an all-burning fire; he will send destruction on them, crushing them before you; and you will send them in flight, putting an end to them quickly, as the Lord has said.
4 Ref And after the Lord has sent them in flight from before you, say not in your heart, Because of my righteousness the Lord has given me this land; when it is because of their evil-doing that the Lord is driving these nations out before you.
5 Ref Not for your righteousness or because your hearts are upright are you going in to take their land; but because of the evil-doing of these nations the Lord your God is driving them out from before you, and to give effect to his oath to your fathers, Abraham, Isaac, and Jacob.