C. F. Keil and Franz Delitzsch on 2 Samuel 8:16

2Sa 8:16

The chief ministers were the following: - Joab (see at 2Sa 2:18) was “over the army,” i.e., commander-in-chief. Jehoshaphat the son of Ahilud, of whom nothing further is known, was mazcir, chancellor; not merely the national annalist, according to the Septuagint and Vulgate (ἐπὶ τῶν ὑπομνημάτην, ὑπομνηματόγραφος; a commentariis), i.e., the recorder of the most important incidents and affairs of the nation, but an officer resembling the magister memoriae of the later Romans, or the waka nuvis of the Persian court, who keeps a record of everything that takes place around the king, furnishes him with an account of all that occurs in the kingdom, places his visé upon all the king’s commands, and keeps a special protocol of all these things (vid., Chardin, Voyages v. p. 258, and Paulsen, Regierung der Morgenländer, pp. 279-80).