Here is, I. A short account of the long stay of Israel in the wilderness: We compassed Mount Seir many days, Deu 2:1. Nearly thirty-eight years they wandered in the deserts of Seir; probably in some of their rests they staid several years, and never stirred; God by this not only chastised them for their murmuring and unbelief, but, 1. Prepared them for Canaan, by humbling them for sin, teaching them to mortify their lusts, to follow God, and to comfort themselves in him. It is a work of time to make souls meet for heaven, and it must be done by a long train of exercises. 2. He prepared the Canaanites for destruction. All this time the measure of their iniquity was filling up; and, though it might have been improved by them as a space to repent in, it was abused by them to the hardening of their hearts. Now that the host of Israel was once repulsed, and after that was so long entangled and seemingly lost in the wilderness, they were secure, and thought the danger was over from that quarter, which would make the next attempt of Israel upon them the more dreadful.
II. Orders given them to turn towards Canaan. Though God contend long, he will not contend for ever. Though Israel may be long kept waiting for deliverance or enlargement, it will come at last: The vision is for an appointed time, and at the end it shall speak, and not lie.
III. A charge given them not to annoy the Edomites.
1. They must not offer any hostility to them as enemies: Meddle not with them, Deu 2:4, Deu 2:5. (1.) They must not improve the advantage they had against them, by the fright they would be put into upon Israel's approach: "They shall be afraid of you, knowing your strength and numbers, and the power of God engaged for you; but think not that, because their fears make them an easy prey, you may therefore prey upon them; no, take heed to yourselves." There is need of great caution and a strict government of our own spirits, to keep ourselves from injuring those against whom we have an advantage. Or this caution is given to the princes; they must not only not meddle with the Edomites themselves, but not permit any of the soldiers to meddle with them. (2.) They must not avenge upon the Edomites the affront they gave them in refusing them passage through their country, Num 20:21. Thus, before God brought Israel to destroy their enemies in Canaan, he taught them to forgive their enemies in Edom. (3.) They must not expect to have any part of their land given them for a possession: Mount Seir was already settled upon the Edomites, and they must not, under pretence of God's covenant and conduct, think to seize for themselves all they could lay hands on. Dominion is not founded in grace. God's Israel shall be well placed, but must not expect to be placed alone in the midst of the earth, Isa 5:8.
2. They must trade with them as neighbours, buy meat and water of them, and pay for what they bought, Deu 2:6. Religion must never be made a cloak for injustice. The reason given (Deu 2:7), is, "God hath blessed thee, and hitherto thou hast lacked nothing; and therefore," (1.) "Thou needest not beg; scorn to be beholden to Edomites, when thou hast a God all-sufficient to depend upon. Thou hast wherewithal to pay for what thou callest for (thanks to the divine blessing!); use therefore what thou hast, use it cheerfully, and do not sponge upon the Edomites." (2.) "Therefore thou must not steal. Thou hast experienced the care of the divine providence concerning thee, in confidence of which for the future, and in a firm belief of its sufficiency, never use any indirect methods for thy supply. Live by the faith and not by thy sword."

For the Lord thy God hath blessed thee in all the works of thine hands,.... Had increased their cattle and substance, even though in a wilderness:

he knoweth thy walking through this great wilderness; every step they took, and he owned them and prospered them in all things in which they were concerned:

these forty years the Lord thy God hath been with thee: not only to protect and defend them, but to provide all things necessary for them. This number of years was not fully completed, but the round number is given instead of the broken one:

thou hast lacked nothing: and since they had wherewith to pay for their food and drink, they are directed to do it, and not take anything from the Edomites in an unjust way; nor make themselves look poor when they were rich, as Jarchi says.

Meddle not with them--that is, "which dwell in Seir" (Deu 2:4) --for there was another branch of Esau's posterity, namely, the Amalekites, who were to be fought against and destroyed (Gen 36:12; Exo 17:14; Deu 25:17). But the people of Edom were not to be injured, either in their persons or property. And although the approach of so vast a nomadic horde as the Israelites naturally created apprehension, they were to take no advantage of the prevailing terror to compel the Edomites to accept whatever terms they imposed. They were merely to pass "through" or along their border, and to buy meat and water of them for money (Deu 2:6). The people, kinder than their king, did sell them bread, meat, fruits, and water in their passage along their border (Deu 2:29), in the same manner as the Syrian caravan of Mecca is now supplied by the people of the same mountains, who meet the pilgrims as at a fair or market on the hadji route [ROBINSON]. Although the Israelites still enjoyed a daily supply of the manna, there was no prohibition against their eating other food when opportunity afforded. Only they were not to cherish an inordinate desire for it. Water is a scarce commodity and is often paid for by travellers in those parts. It was the more incumbent on the Israelites to do so, as, by the blessing of God, they possessed plenty of means to purchase, and the long-continued experience of the extraordinary goodness of God to them, should inspire such confidence in Him as would suppress the smallest thought of resorting to fraud or violence in supplying their wants.