Deuteronomy 9:1

Theological Justification of the Conquest

9:1 Listen, Israel: Today you are about to cross the Jordan so you can dispossess the nations there, people greater and stronger than you who live in large cities with extremely high fortifications.

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.