Deuteronomy 7:14-20

You shall be blessed above all peoples. There shall not be male or female barren among you or among your livestock. And the LORD will take away from you all sickness, and none of the evil diseases of Egypt, which you knew, will he inflict on you, but he will lay them on all who hate you. And you shall consume all the peoples that the LORD your God will give over to you. Your eye shall not pity them, neither shall you serve their gods, for that would be a snare to you. “If you say in your heart, ‘These nations are greater than I. How can I dispossess them?’ you shall not be afraid of them but you shall remember what the LORD your God did to Pharaoh and to all Egypt, the great trials that your eyes saw, the signs, the wonders, the mighty hand, and the outstretched arm, by which the LORD your God brought you out. So will the LORD your God do to all the peoples of whom you are afraid. Moreover, the LORD your God will send hornets among them, until those who are left and hide themselves from you are destroyed.