Now David had said, Surely in vain have I kept all that this fellow has in the wilderness, so that nothing was missed of all that pertained to him: and he has returned me evil for good.
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."