Now therefore, my lord, as Yahweh lives, and as your soul lives, seeing Yahweh has withheld you from blood guiltiness, and from avenging yourself with your own hand, now therefore let your enemies, and those who seek evil to my lord, be as Nabal.
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."