Exodus 34:10-11

10And he said, Behold, I make a covenant: before all thy people I will do marvels that have not been done in all the earth, nor in any nation; and all the people in the midst of which thou [art] shall see the work of Jehovah; for a terrible thing it shall be that I will do with thee.

11Observe what I command thee this day: behold, I will drive out before thee the Amorite, and the Canaanite, and the Hittite, and the Perizzite, and the Hivite, and the Jebusite.