Deuteronomy 2:5

2:5 Do not be hostile toward them, because I am not giving you any of their land, not even a footprint, for I have given Mount Seir ¹  as an inheritance for Esau.

Deuteronomy 2:22

2:22 This is exactly what he did for the descendants of Esau who lived in Seir when he destroyed the Horites before them so that they could dispossess them and settle in their area to this very day.

[2:5]  ¹ sn Mount Seir is synonymous with Edom.