1 Chronicles 18:14-17 - David's Administration
14 So David reigned over all of Israel, administering justice and equity to all of his people. 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.