1 Kings 2:5-9

5“You also know what Joab son of Zeruiah did to me and what he did to the two commanders of Israel’s army, Abner son of Ner and Amasa son of Jether. He murdered them in a time of peace to avenge blood shed in war. He spilled that blood on his own waistband and on the sandals of his feet.

6Act according to your wisdom, and do not let his gray head descend to Sheol in peace.

7“Show kindness to the sons of Barzillai the Gileadite and let them be among those who eat at your table because they supported me when I fled from your brother Absalom.

8“Keep an eye on Shimei son of Gera, the Benjaminite from Bahurim who is with you. He uttered malicious curses against me the day I went to Mahanaim. But he came down to meet me at the Jordan River, and I swore to him by the Lord, ‘I will never kill you with the sword.’

9So don’t let him go unpunished, for you are a wise man. You know how to deal with him to bring his gray head down to Sheol with blood.”