2 Samuel 8:16-18 - David's Cabinet
16 Zeruiah's son Joab served in charge of the army, Ahilud's son Jehoshaphat was his personal archivist, 17 Ahitub's son Zadok and Abiathar's son Ahimelech were priests, Seraiah was his personal secretary, 18 Jehoida's son Benaiah supervised the special forces and mercenaries, and David's sons were priests.