The Moabites and the Ammonites Deuteronomy 2:19 being descended from Lot, the nephew of Abraham Genesis 19:30-38, were, like the Edomites, kinsmen of the Israelites.
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.