Deuteronomy 9:1-4

1Hear, O Israel: thou art to pass over Jordan this day, to go in to possess nations greater and mightier than thyself, cities great and fenced up to heaven,

2a people great and tall, the sons of the Anakim, whom thou knowest, and of whom thou hast heard say, Who can stand before the sons of Anak?

3Know therefore this day, that the LORD thy God is he which goeth over before thee as a devouring fire; he shall destroy them, and he shall bring them down before thee: so shalt thou drive them out, and make them to perish quickly, as the LORD hath spoken unto thee.

4Speak not thou in thine heart, after that the LORD thy God hath thrust them out from before thee, saying, For my righteousness the LORD hath brought me in to possess this land: whereas for the wickedness of these nations the LORD doth drive them out from before thee.