1 Chronicles 23:3, 24, 26-27
1 Chronicles 23:3 NIV
The Levites thirty years old or more were counted, and the total number of men was thirty-eight thousand.
1 Chronicles 23:26-27 NIV
the Levites no longer need to carry the tabernacle or any of the articles used in its service.” According to the last instructions of David, the Levites were counted from those twenty years old or more.