1 Kings 21:27-29

But when Ahab heard this message, he tore his clothing, dressed in burlap, and fasted. He even slept in burlap and went about in deep mourning. Then another message from the LORD came to Elijah: “Do you see how Ahab has humbled himself before me? Because he has done this, I will not do what I promised during his lifetime. It will happen to his sons; I will destroy his dynasty.”