I Crônicas, 9

33. καὶ οὗτοι ψαλτῳδοὶ ἄρχοντες τῶν πατριῶν τῶν Λευιτῶν διατεταγμέναι ἐφημερίαι ὅτι ἡμέρα καὶ νὺξ ἐπ’ αὐτοῖς ἐν τοῖς ἔργοις