28 And the tidings came to Joab; for Joab had turned after Adonijah, though he turned not after Absalom. And Joab fled unto the Tent of Jehovah, and caught hold on the horns of the altar. 29 And it was told king Solomon, Joab is fled unto the Tent of Jehovah, and, behold, he is by the altar. Then Solomon sent Benaiah the son of Jehoiada, saying, Go, fall upon him. 30 And Benaiah came to the Tent of Jehovah, and said unto him, Thus saith the king, Come forth. And he said, Nay; but I will die here. And Benaiah brought the king word again, saying, Thus said Joab, and thus he answered me. 31 And the king said unto him, Do as he hath said, and fall upon him, and bury him; that thou mayest take away the blood, which Joab shed without cause, from me and from my father's house. 32 And Jehovah will return his blood upon his own head, because he fell upon two men more righteous and better than he, and slew them with the sword, and my father David knew it not, [to wit], Abner the son of Ner, captain of the host of Israel, and Amasa the son of Jether, captain of the host of Judah. 33 So shall their blood return upon the head of Joab, and upon the head of his seed for ever: but unto David, and unto his seed, and unto his house, and unto his throne, shall there be peace for ever from Jehovah. 34 Then Benaiah the son of Jehoiada went up, and fell upon him, and slew him; and he was buried in his own house in the wilderness.
Matthew Henry's Commentary on 1 Kings 2:28-34
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.