Deuteronomy 7:20 KJV

18Thou shalt not be afraid of them: but shalt well remember what the LORD thy God did unto Pharaoh, and unto all Egypt;

19The great temptations which thine eyes saw, and the signs, and the wonders, and the mighty hand, and the stretched out arm, whereby the LORD thy God brought thee out: so shall the LORD thy God do unto all the people of whom thou art afraid.

20Moreover the LORD thy God will send the hornet among them, until they that are left, and hide themselves from thee, be destroyed.

21Thou shalt not be affrighted at them: for the LORD thy God is among you, a mighty God and terrible.

22And the LORD thy God will put out those nations before thee by little and little: thou mayest not consume them at once, lest the beasts of the field increase upon thee.