1 Chronicles 15:4-8

And David assembled the children of Aaron, and the Levites:

Of the sons of Kohath; Uriel the chief, and his brethren an hundred and twenty:

Of the sons of Merari; Asaiah the chief, and his brethren two hundred and twenty:

Of the sons of Gershom; Joel the chief, and his brethren an hundred and thirty:

Of the sons of Elizaphan; Shemaiah the chief, and his brethren two hundred: