Deuteronomy 2:10 (KJV)

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.

Ye shall buy meat of them for money, that ye may eat; and ye shall also buy water of them for money, that ye may drink.

For the LORD thy God hath blessed thee in all the works of thy hand: he knoweth thy walking through this great wilderness: these forty years the LORD thy God hath been with thee; thou hast lacked nothing.

And when we passed by from our brethren the children of Esau, which dwelt in Seir, through the way of the plain from Elath, and from Eziongaber, we turned and passed by the way of the wilderness of Moab.

And the LORD said unto me, Distress not the Moabites, neither contend with them in battle: for I will not give thee of their land for a possession; because I have given Ar unto the children of Lot for a possession.

Which also were accounted giants, as the Anakims; but the Moabites called them Emims.

The Horims also dwelt in Seir beforetime; 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.

Now rise up, said I, and get you over the brook Zered. And we went over the brook Zered.

And the space in which we came from Kadeshbarnea, until we were come over the brook Zered, was thirty and eight years; until all the generation of the men of war were wasted out from among the host, as the LORD sware unto them.

For indeed the hand of the LORD was against them, to destroy them from among the host, until they were consumed.