The Lord your God, which goeth before you,.... In a pillar of cloud by day, and in a pillar of fire by night:
he shall fight for you; wherefore, though their enemies were greater and taller than they, yet their God was higher than the highest; and cities walled up to heaven would signify nothing to him, whose throne is in the heavens:
according to all that he did for you in Egypt before your eyes: which is observed to encourage their faith in God; for he that wrought such wonders in Egypt for them, which their eyes, at least some of them, and their fathers, however, had seen, what is it he cannot do?