Joab: Son of David's Sister: Commander of David's Army

Joab son of Zeruiah was over the army; Jehoshaphat son of Ahilud was the recorder;

Now Joab was over the whole army of Israel; Benaiah son of Jehoiada was over the Cherethites and Pelethites;

Now David had said, “Whoever is the first to strike down a Jebusite will become chief commander.” And Joab son of Zeruiah went up first, and he became the chief.

Joab son of Zeruiah was over the army; Jehoshaphat son of Ahilud was the recorder;

Ahithophel was succeeded by Jehoiada son of Benaiah, then by Abiathar. Joab was the commander of the king’s army.