*Minor differences ignored. Grouped by changes, with first version listed as example.
Ye shall not fear them,.... On account of the numbers, strength, courage, and gigantic stature of the inhabitants, at least some of them; nor on account of their walled towns, and fortified cities:
for the Lord your God he shall fight for you; as he did, particularly at Jericho, the walls of which city fell at the sound of rams' horns; and at Gibeon, when he cast down hailstones on their enemies, and more were slain by them than with the sword; and in all their battles it was he that gave them success and victory.
For this reason they were not to be afraid; for Jehovah Himself would fight for them. "He" is emphatic, and adds force to the subject.
*More commentary available at chapter level.