Numbers 22:21

18 And Balaam answered and said to the servants of Balak, If Balak give me his house full of silver and gold, I could not go beyond the commandment of Jehovah my God, to do less or more.

19 And now, I pray you, abide ye also here this night, and I shall know what Jehovah will say to me further.

20 Then God came to Balaam at night, and said to him, If the men have come to call thee, rise up, [and] go with them; but only what I shall say unto thee shalt thou do.

21 And Balaam rose up in the morning, and saddled his ass, and went with the princes of Moab.

22 And God's anger was kindled because he went; and the Angel of Jehovah set himself in the way to withstand him. Now he was riding upon his ass, and his two young men were with him.

23 And the ass saw the Angel of Jehovah standing in the way, and his sword drawn in his hand; and the ass turned aside out of the way, and went into the field, and Balaam smote the ass to turn her into the way.

24 And the Angel of Jehovah stood in a hollow of the vineyards, a wall being on this side, and a wall on that side.