Deuteronomy 7:1-2

The Dispossession of Nonvassals

7:1 When the Lord your God brings you to the land that you are going to occupy and forces out many nations before you – Hittites, Girgashites, Amorites, Canaanites, Perizzites, Hivites, and Jebusites, seven nations more numerous and powerful than you – 7:2 and he delivers them over to you and you attack them, you must utterly annihilate them. Make no treaty with them and show them no mercy!

Deuteronomy 7:22-23

7:22 He, the God who leads you, will expel the nations little by little. You will not be allowed to destroy them all at once lest the wild animals overrun you. 7:23 The Lord your God will give them over to you; he will throw them into a great panic until they are destroyed.