³⁰ King Hezekiah and his officials ordered the Levites to praise the Lord with the words of David and of Asaph the seer. So they sang praises with gladness and bowed down and worshiped.

³⁷ David left Asaph and his associates before the ark of the covenant of the Lord to minister there regularly, according to each day’s requirements.^(A)

⁶ All these men were under the supervision of their father^(A) for the music of the temple of the Lord, with cymbals, lyres and harps, for the ministry at the house of God.

Asaph, Jeduthun and Heman^(B) were under the supervision of the king.^(C)