David and the leaders of the Levites divided the musicians for the coming temple into three family groups: Asaph, Jeduthun, and Heman (I Chronicles 6:31–47), who prophesied with musical instruments, i.e., wrote songs. In some cases, their songs seem to have become part of OT Scripture, for Asaph is named in the titles of Psalms 50 and 73–83, and Jeduthun in the titles of Psalms 39, 62, and 77. In addition, Heman here may be the same person as Heman the Ezrahite named in the title of Psalm 88
The verb “to prophesy” (Hb. naba’) indicates that their songs were prompted or guided by the Spirit of God. This shows that “prophecy” is not always a direct announcement of God's plans; it indicates that the person is operating as God's authorized spokesman, here providing the right way for God's people to sing to him (they prophesied … in thanksgiving and praise to the Lord, I Chronicles 25:3).
It's also noteworthy that their ministry was a family affair. Heman's 17 children were all involved in his ministry. How did he do it? Scripture says they were all under the direction of their father in the music of the Lord with cymbals, harps, and lyres for the service of the house of God (I Chronicles 25: 6).
Heman stepped up as a father and led his large family in the way of the Lord. What mattered to him, mattered to them. He led by example and they followed him. O that God would grant to our church fathers and mothers who live in such a way that their children join them in service and worship to Christ.