1 Chronicles 16:7

7Then on that day aDavid first appointed that thanksgiving be sung to the Lord by Asaph and his brothers.

1 Chronicles 25:1-2

David Organizes the Musicians

1David and the chiefs of the service also set apart for the service the sons of bAsaph, and of cHeman, and of dJeduthun, who eprophesied with lyres, with fharps, and with cymbals. The list of those who did the work and of their duties was: 2Of the sons of Asaph: Zaccur, Joseph, Nethaniah, and Asharelah, sons of Asaph, under the direction of Asaph, who gprophesied under the direction of the king.
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