1 Chronicles 23:4-6

Revised Geneva Translation

⁴ Of these, twenty-four thousand were set to advance the work of the House of the LORD. And six thousand were overseers and judges.

⁵ And four thousand were gatekeepers. And four thousand praised the LORD with instruments (“…which I made for praise!” said David).

⁶ So David separated the sons of Levi — Gershon, Kohath, and Merari — into divisions.