Deuteronomy 7:17-21

7:17 If you think, “These nations are more numerous than I – how can I dispossess them?” 7:18 you must not fear them. You must carefully recall what the Lord your God did to Pharaoh and all Egypt, 7:19 the great judgments you saw, the signs and wonders, the strength and power by which he brought you out – thus the Lord your God will do to all the people you fear. 7:20 Furthermore, the Lord your God will release hornets among them until the very last ones who hide from you perish. 7:21 You must not tremble in their presence, for the Lord your God, who is present among you, is a great and awesome God.