Kings IV 10:6-12

⁶And Ju wrote them a second letter, saying, If ye are for me, and hearken to my voice, take the heads of the men your master's sons, and bring them to me at this time to-morrow in Jezrael. Now the sons of the king were seventy men; these great men of the city brought them up.

⁷And it came to pass, when the letter came to them, that they took the king's sons, and slew them, even seventy men, and put their heads in baskets, and sent them to him at Jezrael.

⁸And a messenger came and told him, saying, They have brought the heads of the king's sons. And he said, Lay them in two heaps by the door of the gate until the morning.

⁹And the morning came, and he went forth, and stood, and said to all the people, Ye are righteous: behold, I conspired against my master, and slew him: but who slew all these?

¹⁰See now that there shall not fall to the ground anything of the word of the Lord which the Lord spoke against the house of Achaab: for the Lord has performed all that he spoke of by the hand of his servant Eliu.

¹¹And Ju smote all that were left of the house of Achaab in Jezrael, and all his great men, and his acquaintance, and his priests, so as not to leave him any remnant.

¹²And he arose and went to Samaria, and he was in the house of sheep-shearing in the way.