II Samuel 3:28-29

Afterward, when David heard it, he said, “My kingdom and I are guiltless before the LORD forever of the blood of Abner the son of Ner. Let it rest on the head of Joab and on all his father’s house; and let there never fail to be in the house of Joab one who has a discharge or is a leper, who leans on a staff or falls by the sword, or who lacks bread.”