Jehoiada the son of Benaiah was the king's advisor after Ahithophel, and later, Abiathar was his advisor. Joab was commander of Israel's army.
Benaiah the son of Jehoiada was the commander of David's bodyguard. David's sons were priests.
Adonijah met with Joab the son of Zeruiah and Abiathar the priest and asked them if they would help him become king. Both of them agreed to help.
David had told his troops, "The first soldier to kill a Jebusite will become my army commander." And since Joab son of Zeruiah attacked first, he became commander.
Joab the son of Zeruiah was the commander in chief of the army. Jehoshaphat the son of Ahilud kept the government records.
in the third month, Benaiah the son of Jehoiada the priest,