Deuteronomy 7:17-21

17Perhaps you will think to yourselves, ‘How can we ever conquer these nations that are so much more powerful than we are?’

18But don’t be afraid of them! Just remember what the Lord your God did to Pharaoh and to all the land of Egypt.

19Remember the great terrors the Lord your God sent against them. You saw it all with your own eyes! And remember the miraculous signs and wonders, and the strong hand and powerful arm with which he brought you out of Egypt. The Lord your God will use this same power against all the people you fear.

20And then the Lord your God will send terror to drive out the few survivors still hiding from you!

21“No, do not be afraid of those nations, for the Lord your God is among you, and he is a great and awesome God.