As the children of Esau which dwell in Seir, and the
Moabites which dwell in Ar, did unto me
Which respects, as Jarchi observes, not the affair of passing through their land requested, for neither of them granted that, but buying food and drink; for though the Edomites at first seem not to have granted that, yet afterwards they did. The mountain of Seir, and the city Ar, are put for the whole countries of Edom and Moab:
until I shall pass over Jordan into the land which the Lord our God
this is observed to remove any suspicion or jealousy of their seizing his country, and taking possession of it, and dwelling in it; since they only proposed to pass through it on their journey to the land of Canaan, which lay on the other side Jordan, over which they must pass in order to possess it, which they had a right unto by the gift of God.