Deuteronomy 2:8-10

8“So we passed beyond our brothers the sons of Esau, who lived in Seir, away from the Arabah (wilderness) road, away from Elath and from Ezion-geber. Then we turned and passed through by the way of the Wilderness of Moab.

9And the Lord said to me, ‘Do not harass [the descendants of] Moab, nor provoke them to war, for I will not give you any of their land as a possession, because I have given Ar to the sons (Moab and Ammon) of Lot as a possession.’

10(The Emim lived there in times past, a people great and numerous, and as tall as the Anakim.