1 Kings 2:32-33, 44

The LORD will return his bloody deeds upon his own head, because he struck down two men more righteous and honorable than he and killed them with the sword, without my father David knowing: Abner the son of Ner, commander of the army of Israel, and Amasa the son of Jether, commander of the army of Judah. So shall their blood return on the head of Joab and the heads of his descendants forever. But for David, his descendants, his house, and his throne, may there be peace from the LORD forever.”

The king also said to Shimei, “You are aware in your own heart of all the evil you did to my father David; so the LORD shall return your evil on your own head.