1 Chronicles 25:5-7

New Revised Standard Version, Anglicised

⁵ All these were the sons of Heman the king’s seer, according to the promise of God to exalt him; for God had given Heman fourteen sons and three daughters. ⁶ They were all under the direction of their father for the music in the house of the Lord with cymbals, harps, and lyres for the service of the house of God. Asaph, Jeduthun, and Heman were under the order of the king. ⁷ They and their kindred, who were trained in singing to the Lord, all of whom were skilful, numbered two hundred and eighty-eight.