He gave a sign the same day, saying, “This is the sign that the Lord has spoken: ‘Behold, the altar will be torn apart, and the ashes that are upon it will be poured out.’ ”
When King Jeroboam heard the saying of the man of God who had cried against the altar in Bethel, he reached out his hand from the altar, saying, “Arrest him!” And the hand that he put forth against him dried up so that he could not pull it back in again.
So Moses and Aaron went to Pharaoh, and they did what the Lord had commanded. And Aaron threw down his rod before Pharaoh and before his servants, and it became a serpent.
“This will be a sign to you, says the Lord, that I will punish you in this place so that you may know that My words shall surely stand against you for disaster.