2 Samuel 14:2, 19-20

And Joab sent to Tekoa and brought from there a wise woman and said to her, “Pretend to be a mourner and put on mourning garments. Do not anoint yourself with oil, but behave like a woman who has been mourning many days for the dead.

The king said, “Is the hand of Joab with you in all this?” The woman answered and said, “As surely as you live, my lord the king, one cannot turn to the right hand or to the left from anything that my lord the king has said. It was your servant Joab who commanded me; it was he who put all these words in the mouth of your servant. In order to change the course of things your servant Joab did this. But my lord has wisdom like the wisdom of the angel of God to know all things that are on the earth.”