1 Kings 2:5-9

5“You know what Joab (Zeruiah’s son) did to me and to the two commanders of Israel’s army—Abner, son of Ner, and Amasa, son of Jether. Joab killed them. When there was peace, he shed blood as if it were wartime. With their blood he stained the belt around his waist and the shoes on his feet.

6Use your wisdom. Don’t let that gray-haired, old man go to his grave peacefully.

7“Be kind to the sons of Barzillai from Gilead. Let them eat at your table. They helped me when I was fleeing from your brother Absalom.

8“Shimei, son of Gera from Bahurim in Benjamin, is still with you. He cursed me repeatedly when I went to Mahanaim. But when he came to meet me at the Jordan River, I took an oath by the Lord and said, ‘As long as I’m king, I won’t have you killed.’

9Now, don’t let him go unpunished. You are wise and know what to do to him: Put that gray-haired, old man into his grave by slaughtering him.”