2 So 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. 3 Then go to the king and tell him the story I am about to tell you." Then Joab told her what to say. 4 When the woman from Tekoa approached the king, she bowed with her face to the ground in deep respect and cried out, "O king! Help me!"

Matthew Henry's Commentary on 2 Samuel 14:2-4

Commentary on 2 Samuel 14:1-20

(Read 2 Samuel 14:1-20)

We may notice here, how this widow pleads God's mercy, and his clemency toward poor guilty sinners. The state of sinners is a state of banishment from God. God pardons none to the dishonour of his law and justice, nor any who are impenitent; nor to the encouragement of crimes, or the hurt of others.