Deuteronomy 2:8-9

8“And when we passed beyond our brethren, the descendants of Esau who dwell in Seir, away from the road of the plain, away from Elath and Ezion Geber, we turned and passed by way of the Wilderness of Moab.

9Then the Lord said to me, ‘Do not harass Moab, nor contend with them in battle, for I will not give you any of their land as a possession, because I have given Ar to the descendants of Lot as a possession.’ ”