1 Chronicles 25:6

6 All these under the hand of their father were dealed, either assigned, to sing in the temple of the Lord, in cymbals, and psalteries, and harps, into the service of the house of the Lord, nigh the king, that is say, Asaph, and Jeduthun, and Heman. (All these were under the hand, or the power, of their father, and were assigned to play, in the Temple of the Lord, cymbals, and lutes, and harps, for service in the House of the Lord, while Asaph, and Jeduthun, and Heman, were under the direction of the king.)

1 Chronicles 25:6 Meaning and Commentary

1 Chronicles 25:6

All these were under the hands of their father, for song in the
house of the Lord
Instructed and directed by him in the performance of the service in the temple: with cymbals, psalteries, and harps, for the service of the house of
God;
which were the three principal instruments of music used in the temple service: according to the king's order, to Asaph, Jeduthun, and Heman;
who ordered and directed them what to sing, what tunes to make use of, and what instruments to play upon to those tunes.

1 Chronicles 25:6 In-Context

4 Also the sons of Heman were (these of) Heman; Bukkiah, Mattaniah, Uzziel, Shebuel, and Jerimoth, Hananiah, Hanani, Eliathah, Giddalti, and Romamtiezer, and Joshbekashah, Mallothi, Hothir, and Mahazioth;

5 all these the sons of Heman were prophets of the king in the words of God, that he should enhance the horn, or strength. And God gave to Heman fourteen sons and three daughters. (all these were the sons of Heman, the prophet of the king, by the promises of God, to lift up his horn, or his strength. And God gave Heman fourteen sons and three daughters.)

6 All these under the hand of their father were dealed, either assigned, to sing in the temple of the Lord, in cymbals, and psalteries, and harps, into the service of the house of the Lord, nigh the king, that is say, Asaph, and Jeduthun, and Heman. (All these were under the hand, or the power, of their father, and were assigned to play, in the Temple of the Lord, cymbals, and lutes, and harps, for service in the House of the Lord, while Asaph, and Jeduthun, and Heman, were under the direction of the king.)

7 And the number of them, with their brethren that taught the song[s] of the Lord, all the teachers, was two hundred fourscore and eight. (And their number, with their kinsmen who taught the songs of the Lord, yea, all of the teachers, was two hundred and eighty-eight.)

8 And they sent lots by their whiles evenly, as well the greater as the less, also a wise man and an unwise. (And they all cast lots for their duties, both the greater and the lesser alike, and a wise man as well as an unwise one.)