Numbers 22:20-22

And God came to Balaam at night and said to him, “If the men come to call you, rise and go with them; but only the word which I speak to you—that you shall do.” So Balaam rose in the morning, saddled his donkey, and went with the princes of Moab. Then God’s anger was aroused because he went, and the Angel of the LORD took His stand in the way as an adversary against him. And he was riding on his donkey, and his two servants were with him.