5. Moreover, four thousand were porters. And the same number were the singers of psalms to the Lord, with the musical instruments which he had made for the music.
6. And David distributed them into courses according to the sons of Levi, specifically, Gershom, and Kohath, and Merari.
7. The sons of Gershom: Ladan and Shimei.
8. The sons of Ladan: the leader Jahiel, and Zetham, and Joel, three.