Numbers 22:25-29

And when the ass saw the angel of the LORD, she thrust herself unto the wall, and crushed Balaam’s foot against the wall: and he smote her again.

And the angel of the LORD went further, and stood in a narrow place, where was no way to turn either to the right hand or to the left.

And when the ass saw the angel of the LORD, she fell down under Balaam: and Balaam’s anger was kindled, and he smote the ass with a staff.

And the LORD opened the mouth of the ass, and she said unto Balaam, What have I done unto thee, that thou hast smitten me these three times?

And Balaam said unto the ass, Because thou hast mocked me: I would there were a sword in mine hand, for now would I kill thee.