She fell at his feet, and said, On me, my lord, on me be the iniquity; and please let your handmaid speak in your ears. Hear the words of your handmaid.
So Abigail is there pleading with David. Beautiful woman, has brought all of these things, and she is making good sense. "You know why should you avenge yourself. God will avenge you David. He's taken care of you, and so forgive the foolishness of this foolish man."