Distress not the Moabites... I have given Ar unto the children of Lot. — The children of Lot, like those of Ishmael and Esau, had their earthly inheritance before the children of Abraham.
Related Commentaries of Deuteronomy 2:9
Deuteronomy 2:9
9 And the LORD said unto me, Distressb not the Moabites, neither contend with them in battle: for I will not give thee of their land for a possession; because I have given Ar unto the children of Lot for a possession.