Deuteronomy 2:4

2:4 Instruct these people as follows: ‘You are about to cross the border of your relatives the descendants of Esau, who inhabit Seir. They will be afraid of you, so watch yourselves carefully.

Deuteronomy 2:8

2:8 So we turned away from our relatives the descendants of Esau, the inhabitants of Seir, turning from the desert route, from Elat and Ezion Geber, and traveling the way of the Moab wastelands.