1 Chronicles 23:5 in the World English Bible
four thousand were doorkeepers, and four thousand praised the LORD with the instruments which I made for giving praise.”
Context
4 Of which, twenty and four thousand were to set forward the work of the house of the LORD; and six thousand were officers and judges:
5 Moreover four thousand were porters; and four thousand praised the LORD with the instruments which I made, said David, to praise therewith.
6 And David divided them into courses among the sons of Levi, namely, Gershon, Kohath, and Merari.