2 Samuel 14:2

So Joab sent to Tekoa to bring a wise woman from there. He told her, “Please pretend to be a mourner; put on clothes for mourning and do not anoint yourself with oil. Act like a woman who has mourned for the dead a long time.

And Joab sent to Tekoah, and fetched thence a wise woman, and said unto her, I pray thee, feign thyself to be a mourner, and put on now mourning apparel, and anoint not thyself with oil, but be as a woman that had a long time mourned for the dead: