Pethor

He sent messengers to Balaam the son of Beor, to Pethor, which is by the River, to the land of the children of his people, to call him, saying, “Behold, there is a people who came out of Egypt. Behold, they cover the surface of the earth, and they are staying opposite me.

because they didn’t meet you with bread and with water on the way, when you came out of Egypt, and because they hired against you Balaam the son of Beor from Pethor of Mesopotamia, to curse you.