Numbers 22:2-6

²Now Balak, the son of Zippor, saw what Israel had done to the Amorites.

³And in Moab there was great fear of the people, because their numbers were so great: and the feeling of Moab was bitter against the children of Israel.

⁴Then Moab said to the responsible men of Midian, It is clear that this great people will be the destruction of everything round us, making a meal of us as the ox does of the grass of the field. At that time Balak, the son of Zippor, was king of Moab.

⁵So he sent men to Balaam, son of Beor, at Pethor by the River in the land of the children of his people, saying to him, See, a people has come out of Egypt, covering all the face of the earth, and they have put up their tents opposite to me:

⁶Come now, in answer to my prayer, and put a curse on this people, for they are greater than I: and then I may be strong enough to overcome them and send them out of the land: for it is clear that good comes to him who has your blessing, but he on whom you put your curse is cursed.