Deuteronomy 2:28-29

Thou shalt sell me meat for money, that I may eat; and give me water for money, that I may drink: only I will pass through on my feet; (as the children of Esau which dwell in Seir, and the Moabites which dwell in Ar, did unto me;) until I shall pass over Jordan into the land which the LORD our God giveth us.