Numbers 22:15-22

15And Balak sent yet again princes, more, and more honorable than they. 16And they came to Balaam, and said to him, Thus saith Balak the son of Zippor, Let nothing, I pray thee, hinder thee from coming unto me: 17for I will promote thee unto very great honor, and whatsoever thou sayest unto me I will do: come therefore, I pray thee, curse me this people. 18And Balaam answered and said unto the servants of Balak, If Balak would give me his house full of silver and gold, I cannot go beyond the word of Jehovah my God, to do less or more. 19Now therefore, I pray you, tarry ye also here this night, that I may know what Jehovah will speak unto me more. 20And God came unto Balaam at night, and said unto him, If the men are come to call thee, rise up, go with them; but only the word which I speak unto thee, that shalt thou do.

21And Balaam rose up in the morning, and saddled his ass, and went with the princes of Moab. 22And God’s anger was kindled because he went; and the angel of Jehovah placed himself in the way for an adversary against him. Now he was riding upon his ass, and his two servants were with him.