1 Kings 2:6-10

So act as your wisdom dictates, and do not let his gray hair go down to Sheol in peace.

However, show kindness to the sons of Barzillai the Gileadite, and let them be among those who eat at your table; for they assisted me when I fled from Absalom your brother.

And behold, you have with you Shimei the son of Gera the Benjaminite, of Bahurim; now it was he who cursed me with a painful curse on the day I went to Mahanaim. But when he came down to meet me at the Jordan, I swore to him by the Lord, saying, ‘I will not put you to death with the sword.’

But now do not leave him unpunished, for you are a wise man; and you will know what to do to him, and you will bring his gray hair down to Sheol with blood.” Death of David

Then David lay down with his fathers, and he was buried in the city of David.