John Gill

But, if thou shall indeed obey his voice,.... Or "hearkening hearken", (n) to it attentively, listen to it, and diligently and constantly observe and obey in whatever he shall direct and order: and do all that I speak; by him; or whatsoever he had spoke, or was about to speak; for as yet all the laws and statutes were not delivered, especially those of the ceremonial kind: then I will be an enemy unto thine enemies, and an adversary unto thine adversaries; which they should either meet with in their passage through the wilderness, or when they came into the land of Canaan; signifying hereby that he would protect them from them, subdue them under them, and give them victory over them, as that they should be utterly destroyed, and so way made for their possession of their land, as in the following words. (n) "audiendo audieris", Pagninus, Montanus, Drusius, Piscator.