Deuteronomy 6:19

To cast out all thine enemies from before thee
This the Lord promised, and as it seems with an oath, that he would do for them; drive out their enemies, and make way for the settlement of them in their country:

as the Lord hath spoken;
see ( Genesis 15:18 Genesis 15:19 Genesis 15:20 ) ( 22:17 ) ( Exodus 23:28 ) .