1 Chronicles 23:3-6

LITV(i) 3 And the Levites were counted from a son of thirty years and upward; and their number by their heads, as to men, thirty eight thousand. 4 Of these, twenty four thousand to be overseers over the work of the house of Jehovah; and six thousand were officers and judges; 5 and four thousand were gatekeepers, and four thousand giving praise to Jehovah with instruments which I made for praising. 6 And David divided them into divisions of the sons of Levi, of Gershon, Kohath, and Merari.