1 Kings 2:4-8

so that the Lord may fulfill His promise which He spoke regarding me, saying, ‘If your sons are careful about their way, to walk before Me in truth with all their heart and all their soul, you shall not be deprived of a man to occupy the throne of Israel.’

“Now you yourself also know what Joab the son of Zeruiah did to me, what he did to the two commanders of the armies of Israel, to Abner the son of Ner and to Amasa the son of Jether, whom he killed; he also shed the blood of war in peace. And he put the blood of war on his belt that was on his waist, and on his sandals that were on his feet.

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.’