Adam Clarke on 2 Kings 11:10

King David's spears and shields - Josephus expressly says that David had provided an arsenal for the temple, out of which Jehoiada took those arms. His words are; Ανοιξας δε Ιωαδος την εν τῳ ἱερῳ ὁπλοθηκην, ἡν Δαβιδης κατεσκευασε, διεμερισε τοις ἑκατονταρχαις ἁμα και ἱεροισι και Λευιταις ἁπανθ' ὁσα εὑρεν εν αυτῃ δορατα τε και φαρετρας, και ει τι ἑτερον ειδος ὁπλου κατελαβε. "And Jehoiada having opened the arsenal in the temple, which David had prepared, he divided among the centurions, priests, and Levites, the spears, (arrows), and quivers, and all other kinds of weapons which he found there." - Ant. lib. ix., c. 7, s. 8.