Genesis 36:8

And the Horites in their mount Seir, unto Elparan, which is by the wilderness.

And Jacob sent messengers before him to Esau his brother unto the land of Seir, the country of Edom.

These are the sons of Seir the Horite, who inhabited the land; Lotan, and Shobal, and Zibeon, and Anah,

Meddle not with them; for I will not give you of their land, no, not so much as a foot breadth; because I have given mount Seir unto Esau for a possession.

And I gave unto Isaac Jacob and Esau: and I gave unto Esau mount Seir, to possess it; but Jacob and his children went down into Egypt.

And some of them, even of the sons of Simeon, five hundred men, went to mount Seir, having for their captains Pelatiah, and Neariah, and Rephaiah, and Uzziel, the sons of Ishi.

And now, behold, the children of Ammon and Moab and mount Seir, whom thou wouldest not let Israel invade, when they came out of the land of Egypt, but they turned from them, and destroyed them not;

Son of man, set thy face against mount Seir, and prophesy against it, And say unto it, Thus saith the Lord GOD; Behold, O mount Seir, I am against thee, and I will stretch out mine hand against thee, and I will make thee most desolate. I will lay thy cities waste, and thou shalt be desolate, and thou shalt know that I am the LORD. Because thou hast had a perpetual hatred, and hast shed the blood of the children of Israel by the force of the sword in the time of their calamity, in the time that their iniquity had an end: Therefore, as I live, saith the Lord GOD, I will prepare thee unto blood, and blood shall pursue thee: sith thou hast not hated blood, even blood shall pursue thee. Thus will I make mount Seir most desolate, and cut off from it him that passeth out and him that returneth.