And the prophet went on to say, “This altar will fall apart, and the ashes on it will be scattered. Then you will know that the Lord has spoken through me.”
When King Jeroboam heard this, he pointed at him and ordered, “Seize that man!” At once the king's arm became paralyzed so that he couldn't pull it back.
Then Moses answered the Lord, “But suppose the Israelites do not believe me and will not listen to what I say. What shall I do if they say that you did not appear to me?”
So Moses and Aaron went to the king and did as the Lord had commanded. Aaron threw his walking stick down in front of the king and his officers, and it turned into a snake.