That same day the man of God gave a sign: “This is the sign the Lord has declared: The altar will be split apart and the ashes on it will be poured out.”
When King Jeroboam heard what the man of God cried out against the altar at Bethel, he stretched out his hand from the altar and said, “Seize him!” But the hand he stretched out toward the man shriveled up, so that he could not pull it back.
Hezekiah had asked Isaiah, “What will be the sign that the Lord will heal me and that I will go up to the temple of the Lord on the third day from now?”
So Moses and Aaron went to Pharaoh and did just as the Lord commanded. Aaron threw his staff down in front of Pharaoh and his officials, and it became a snake.
“ ‘This will be the sign to you that I will punish you in this place,’ declares the Lord, ‘so that you will know that my threats of harm against you will surely stand.’