2 Samuel 20:20-22

20Joab answered her, ‘That is stupid! I would never do that! I am not trying to destroy anything.

21That is not what we want. But there is a man in your city whose name is Sheba. He is Bicri's son and he comes from the hill country of Ephraim. He has turned against King David. If you will give me this one man, I will go away from your city. I will not destroy it.’ The woman said to Joab, ‘Wait there! I will throw his head to you from the wall.’

22Then the woman spoke to all the people in the city. She told them her wise advice. So they cut off Sheba's head and they threw it off the wall to Joab. Then Joab made a loud noise with his trumpet. So his soldiers went away from the city. Each of them went to his own home. Joab returned to King David in Jerusalem.