2 Samuel 14:2-3

2So he sent for a woman from Tekoa who had a reputation for great wisdom. He said to her, “Pretend you are in mourning; wear mourning clothes and don’t put on lotions. Act like a woman who has been mourning for the dead for a long time.

3Then go to the king and tell him the story I am about to tell you.” Then Joab told her what to say.