Deuteronomy 2:6

3 Ye have compassed this mountain long enough: turn you northward.

4 And command thou the people, saying, Ye [are] to pass through the border of your brethren the children of Esau, who dwell in Seir; and they will be afraid of you: therefore take ye good heed to yourselves:

5 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 to Esau [for] a possession.

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

7 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.

8 And when we passed by from our brethren the children of Esau, who dwelt in Seir, through the way of the plain from Elath, and from Ezion-gaber, we turned and passed by the way of the wilderness of Moab.

9 And the LORD said to 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 to the children of Lot [for] a possession.