3 As for Jeduthun, from his sons: Gedaliah, Zeri, Jeshaiah, Shimei,a Hashabiah and Mattithiah, six in all, under the supervision of their father Jeduthun, who prophesied, using the harp in thanking and praising the LORD.

Read 1 Chronicles 25:3 Using Other Translations

Of Jeduthun: the sons of Jeduthun; Gedaliah, and Zeri, and Jeshaiah, Hashabiah, and Mattithiah, six, under the hands of their father Jeduthun, who prophesied with a harp, to give thanks and to praise the LORD.
Of Jeduthun, the sons of Jeduthun: Gedaliah, Zeri, Jeshaiah, Shimei, Hashabiah, and Mattithiah, six, under the direction of their father Jeduthun, who prophesied with the lyre in thanksgiving and praise to the LORD.
From the sons of Jeduthun, there were Gedaliah, Zeri, Jeshaiah, Shimei, Hashabiah, and Mattithiah, six in all. They worked under the direction of their father, Jeduthun, who proclaimed God’s messages to the accompaniment of the lyre, offering thanks and praise to the LORD .