The Horites also dwelt in Seir formerly; but the children of Esau succeeded them, when they had destroyed them from before them, and dwelt in their stead; as Israel did unto the land of his possession, which the LORD gave unto them.
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George Leo Haydock
AD 1849
Gave him, on the east side of the Jordan. They had not yet taken possession of Chanaan. But Moses foresees that they shortly will; and in this sense we may translate, "Esau dwelt there, as Israel will in the land", ver. 29. The neighbouring nations could not rationally object to their coming, as they themselves had dispossessed the former owners of the land, ver. 20, 23. (Calmet)