2 Samuel 14:1-4

Now Joab the son of Zeruiah knew that the king’s heart longed for Absalom. So Joab sent word to Tekoa and had a wise woman brought from there and told her, “Please pretend to be a mourner, and put on mourning clothes, and do not anoint yourself with oil, but act like a woman who has for many days been in mourning for the dead. Then go to the king and speak to him in this way.” So Joab told her what to say. When the woman of Tekoa spoke to the king, she bowed with her face to the ground and lay herself down, and said, “Help, O king.”