2 Samuel 14:2

14:2 So Joab sent to Tekoa and brought from there a wise woman. He told her, “Pretend to be in mourning and put on garments for mourning. Don’t anoint yourself with oil. Instead, act like a woman who has been mourning for the dead for some time.

2 Samuel 14:20

14:20 Your servant Joab did this so as to change this situation. But my lord has wisdom like that of the angel of God, and knows everything that is happening in the land.”