2 Samuel 14:2-6

So Joab sent a messenger to Tekoa and brought a wise woman from there, and said to her, “Please follow mourning rites, and put on mourning garments now, and do not anoint yourself with oil but be like a woman who has been mourning for the dead for many days.

Then go to the king and speak to him in this way.” So Joab put the words in her mouth.

Now when the woman of Tekoa spoke to the king, she fell on her face to the ground and prostrated herself, and said, “Help, O king!”

And the king said to her, “What is troubling you?” And she answered, “Truly I am a widow, for my husband is dead.

And your servant had two sons, but the two of them fought in the field, and there was no one to save them from each other, so one struck the other and killed him.