2 Kings 10:7, 14

And it came to pass, when the letter came to them, that they took the king’s sons, and slew them, even seventy persons, and put their heads in baskets, and sent them unto him to Jezreel.

And he said, Take them alive. And they took them alive, and slew them at the pit of the shearing-house, even two and forty men; neither left he any of them.