Thematic Bible: Divided them into four classes

Of these to preside over the work of the house of Jehovah are twenty and four thousand, and officers and judges six thousand, and four thousand gatekeepers, and four thousand giving praise to Jehovah, 'with instruments that I made for praising,' saith David. And David distributeth them into courses: Of the sons of Levi: of Gershon, Kohath, and Merari.