Moreover, thou knowest also what Joab the son of Zeruiah did to me, and what he did to the two captains of the armies of Israel, to Abner the son of Ner, and to Amasa the son of Jether, whom he slew, and shed the blood of war in peace, and put the blood of war upon his girdle that was about his loins, and in his shoes that were on his feet.

And the LORD shall return his blood upon his own head, who fell upon two men more righteous and better than he, and slew them with the sword, my father David not knowing of it, 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.