2 Kings 10:8-10

8The messenger came and told Jehu, “They have brought the heads of the king’s sons.” Jehu said, “Stack them in two piles at the entrance of the city gate until morning.”

9In the morning he went out and stood there. Then he said to all the people, “You are innocent. I conspired against my master and killed him. But who struck down all of these men?

10Therefore take note that not one of the judgments the Lord announced against Ahab’s dynasty has failed to materialize. The Lord had done what he announced through his servant Elijah.”