2 Kings 10:8-10

8And there came a messenger, and told him, saying, They have brought the heads of the king’s sons. And he said, Lay ye them in two heaps at the entering in of the gate until the morning. 9And it came to pass in the morning, that he went out, and stood, and said to all the people, Ye be righteous: behold, I conspired against my master, and slew him: but who slew all these? 10Know now that there shall fall unto the earth nothing of the word of the Lord, which the Lord spake concerning the house of Ahab: for the Lord hath done that which he spake by his servant Elijah.1