KJV: All these were the sons of Heman the king's seer in the words of God, to lift up the horn. And God gave to Heman fourteen sons and three daughters.
NASB: All these were the sons of Heman the king's seer to exalt him according to the words of God, for God gave fourteen sons and three daughters to Heman.
KJV: All these were under the hands of their father for song in the house of the LORD, with cymbals, psalteries, and harps, for the service of the house of God, according to the king's order to Asaph, Jeduthun, and Heman.
NASB: All these were under the direction of their father to sing 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 direction of the king.
KJV: Also the Levites which were the singers, all of them of Asaph, of Heman, of Jeduthun, with their sons and their brethren, being arrayed in white linen, having cymbals and psalteries and harps, stood at the east end of the altar, and with them an hundred and twenty priests sounding with trumpets:)
NASB: and all the Levitical singers, Asaph, Heman, Jeduthun, and their sons and kinsmen, clothed in fine linen, with cymbals, harps and lyres, standing east of the altar, and with them one hundred and twenty priests blowing trumpets
KJV: And the singers the sons of Asaph were in their place, according to the commandment of David, and Asaph, and Heman, and Jeduthun the king's seer; and the porters waited at every gate; they might not depart from their service; for their brethren the Levites prepared for them.
NASB: The singers, the sons of Asaph, were also at their stations according to the command of David, Asaph, Heman, and Jeduthun the king's seer; and the gatekeepers at each gate did not have to depart from their service, because the Levites their brethren prepared for them.