1 Chronicles 23:2-4

New Living Translation

² David summoned all the leaders of Israel, together with the priests and Levites. ³ All the Levites who were thirty years old or older were counted, and the total came to 38,000. ⁴ Then David said, “From all the Levites, 24,000 will supervise the work at the Temple of the Lord. Another 6,000 will serve as officials and judges.