1 Chronicles 23:2-6 NIV

2 He also gathered together all the leaders of Israel, as well as the priests and Levites.
3 The Levites thirty years old or more1 were counted,2 and the total number of men was thirty-eight thousand.3

References for 1 Chronicles 23:3

4 David said, "Of these, twenty-four thousand are to supervise4 the work5 of the temple of the LORD and six thousand are to be officials and judges6

References for 1 Chronicles 23:4

5 Four thousand are to be gatekeepers and four thousand are to praise the LORD with the musical instruments7 I have provided for that purpose."8

References for 1 Chronicles 23:5

6 David divided9 the Levites into groups corresponding to the sons of Levi:10 Gershon, Kohath and Merari.

References for 1 Chronicles 23:6