1-я Паралипоменон 25:2

Of the sons of Asaph,.... Who were separated, and by lot appointed, to the service of singers in the temple: Zaccur, and Joseph, and Nethaniah, and Asarelah; called Jesharelah, Ch1 25:14, these had the third fourth, fifth, and seventh lots, Ch1 25:9, under the hands of Asaph; under his instruction and authority: which prophesied according to the order of the king; which Asaph composed psalms under the inspiration of the Spirit of God, and was ordered by King David to sing them, and by whose command they were inserted in the book of Psalms, where they now stand with his name to them.

David, having settled the courses of these Levites that were to attend the priests in their ministrations, proceeds, in this chapter, to put those into a method that were appointed to be singers and musicians in the temple. Here is, I. The persons that were to be employed, Asaph, Heman, and Jeduthun (Ch1 25:1), their sons (Ch1 25:2-6), and other skilful persons (Ch1 25:7). II. The order in which they were to attend determined by lot (v. 8-31).

25:2-3 Asaph and Jeduthun . . . proclaimed God’s messages, meaning they were prophets as well as musicians.