2 Samuel 14:4 (KJV)

Now Joab the son of Zeruiah perceived that the king's heart was toward Absalom.

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:

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

And the king said unto her, What aileth thee? And she answered, I am indeed a widow woman, and mine husband is dead.

And thy handmaid had two sons, and they two strove together in the field, and there was none to part them, but the one smote the other, and slew him.

And, behold, the whole family is risen against thine handmaid, and they said, Deliver him that smote his brother, that we may kill him, for the life of his brother whom he slew; and we will destroy the heir also: and so they shall quench my coal which is left, and shall not leave to my husband neither name nor remainder upon the earth.

And the king said unto the woman, Go to thine house, and I will give charge concerning thee.

And the woman of Tekoah said unto the king, My lord, O king, the iniquity be on me, and on my father's house: and the king and his throne be guiltless.