as the sons of Esau who live in Seir and the Moabites who live in Ar did for me, until I go over the Jordan into the land that the LORD our God is giving to us.’
God having tried the self-denial of his people in forbidding them to meddle with the Moabites and Ammonites, and they having quietly passed by those rich countries, and, though superior in number, not made any attack upon them, here he recompenses them for their obedience by giving them possession of the country of Sihon king of the Amorites.
Commenting on Deuteronomy 2:24-37
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.
(As the children of Esau which dwell in Seir, and the Moabites which dwell in Ar, did unto me;) until I shall pass over Jordan into the land which the LORD our God giveth us. (m) Because neither intreaty nor examples or others could move him, he could not complain of his just destruction.