Numbers 22:20-22
22:20 God came to Balaam that night, and said to him, “If the men have come to call you, get up and go with them; but the word that I will say to you, that you must do.”
22:21 So Balaam got up in the morning, saddled his donkey, and went with the princes of Moab.
God Opposes Balaam
22:22 Then God’s anger was kindled because he went, and the angel of the Lord stood in the road to oppose him. Now he was riding on his donkey and his two servants were with him.