1CH 25:1

1 Therefore David, and the magistrates of the host, separated to the service of the sons of Asaph, and of Heman, and of Jeduthun, the which should prophesy in harps, and in psalteries, and in cymbals, by their number, and serve the office hallowed, or enjoined, to them. (And so David, and his officers or and his leaders, set apart for service the sons of Asaph, and of Heman, and of Jeduthun, who would prophesy to the accompaniment of harps, and lutes, and cymbals, by their number, and so do the work assigned to them.)