26 To Abiathar the priest the king said, "Go back to your fields in Anathoth. You deserve to die, but I will not put you to death now, because you carried the ark of the Sovereign Lord before my father David and shared all my father's hardships." 27 So Solomon removed Abiathar from the priesthood of the Lord, fulfilling the word the Lord had spoken at Shiloh about the house of Eli. 28 When the news reached Joab, who had conspired with Adonijah though not with Absalom, he fled to the tent of the Lord and took hold of the horns of the altar. 29 King Solomon was told that Joab had fled to the tent of the Lord and was beside the altar. Then Solomon ordered Benaiah son of Jehoiada, "Go, strike him down!" 30 So Benaiah entered the tent of the Lord and said to Joab, "The king says, 'Come out!' " But he answered, "No, I will die here." Benaiah reported to the king, "This is how Joab answered me." 31 Then the king commanded Benaiah, "Do as he says. Strike him down and bury him, and so clear me and my whole family of the guilt of the innocent blood that Joab shed. 32 The Lord will repay him for the blood he shed, because without my father David knowing it he attacked two men and killed them with the sword. Both of them-Abner son of Ner, commander of Israel's army, and Amasa son of Jether, commander of Judah's army-were better men and more upright than he. 33 May the guilt of their blood rest on the head of Joab and his descendants forever. But on David and his descendants, his house and his throne, may there be the Lord's peace forever." 34 So Benaiah son of Jehoiada went up and struck down Joab and killed him, and he was buried at his home out in the country.

Matthew Henry's Commentary on 1 Kings 2:26-34

Commentary on 1 Kings 2:26-34

(Read 1 Kings 2:26-34)

Solomon's words to Abiathar, and his silence, imply that some recent conspiracies had been entered into. Those that show kindness to God's people shall have it remembered to their advantage. For this reason Solomon spares Abiathar's life, but dismisses him from his offices. In case of such sins as the blood of beasts would atone for, the altar was a refuge, but not in Joab's case. Solomon looks upward to God as the Author of peace, and forward to eternity as the perfection of it. The Lord of peace himself gives us that peace which is everlasting.