2 Samuel 14:4 Meaning

2And 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:

3And come to the king, and speak on this manner unto him. So Joab put the words in her mouth.

4And when the woman of Tekoah spake to the king, she fell on her face to the ground, and did obeisance, and said, Help, O king.

5And the king said unto her, What aileth thee? And she answered, I am indeed a widow woman, and mine husband is dead.

6And 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.