1 Kings 2:32-33, 44

The LORD will return his blood on his own head, because he fell upon two men more righteous and better than he and killed them with the sword, while my father David did not know it: 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 on the head of his descendants forever; but to David and his descendants and his house and his throne, may there be peace from the LORD forever.”

The king also said to Shimei, “You know all the evil which you acknowledge in your heart, which you did to my father David; therefore the LORD shall return your evil on your own head.