Genesis 36:7-9

Amplified Bible

⁷ For their [great flocks and herds and] possessions made it impossible for them to live together [in the same region]; the land in which they lived temporarily could not support them because of their livestock. ⁸ So Esau lived in the hill country of Seir; Esau is Edom.

Descendants of Esau

⁹ These are the records of the generations of Esau the father of the Edomites in the hill country of Seir.