2 Samuel 14:3

And come to the king, and speak on this manner unto him. So Joab put the words in her mouth.

Joab arranged for a woman to be brought before King David to plead a prepared case. He himself furnished the words she was to speak when she came into the king's presence. By this intervention through the woman he helped bring about Absalom's reconciliation with David. That restored trust was afterward betrayed by Absalom.