1 Chronicles 18:15-17

ISV(i) 15 Zeruiah’s son Joab served in charge of the army, Ahilud’s son Jehoshaphat was his personal archivist, 16 Ahitub’s son Zadok and Abiathar’s son Ahimelech were priests, Shavsha was his personal secretary, 17 Jehoiada’s son Benaiah supervised the special forces and mercenaries, while David’s sons worked as chief officials in service to the king.