1 Chronicles 23:3-6

VIN(i) 3 The Levites thirty years old or older were counted, and the total number of men was thirty-eight thousand. 4 David said: Of these, twenty-four thousand are to supervise the work of the LORD’s Temple and six thousand are to be officials and judges. 5 Four thousand are to be gatekeepers and four thousand are to praise the LORD with musical instruments I have provided for that purpose. 6 David divided the Levites into groups corresponding to the sons of Levi: Gershon, Kohath and Merari.