1 Chronicles 25:1-2

1David and the army officers chose some Levites to serve God as musicians. They belonged to the families of Asaph, Heman and Jeduthun. They chose these men to speak messages from God while they made music with harps, lyres and cymbals. Here is a list of the men that they chose for this work:

2From Asaph's sons, there were: Zaccur, Joseph, Nethaniah and Asarelah. Asaph had authority over their work. He would speak a message from God when the king told him to do that.