The Levites: David: Divided Them Into Four Classed
Source: TTT
1 Chronicles 23:4–6
“Of these,” said David, “24,000 are to oversee the work of the house of the LORD, 6,000 are to be officers and judges, / 4,000 are to be gatekeepers, and 4,000 are to praise the LORD with the instruments I have made for giving praise.” / Then David divided the Levites into divisions according to the sons of Levi: Gershom, Kohath, and Merari.