I Samuel 25:21-22, 33-34

Now David had said, “Surely in vain I have protected all that this fellow has in the wilderness, so that nothing was missed of all that belongs to him. And he has repaid me evil for good. May God do so, and more also, to the enemies of David, if I leave one male of all who belong to him by morning light.”

And blessed is your advice and blessed are you, because you have kept me this day from coming to bloodshed and from avenging myself with my own hand. For indeed, as the LORD God of Israel lives, who has kept me back from hurting you, unless you had hurried and come to meet me, surely by morning light no males would have been left to Nabal!”