1 Chronicles 23:6 And David divided them into courses among the sons of Levi, namely, Gershon, Kohath, and Merari. MC VC

1 Chronicles 24:3 And David distributed them, both Zadok of the sons of Eleazar, and Ahimelech of the sons of Ithamar, according to their offices in their service. MC VC

1 Chronicles 25:1 Moreover David and the captains of the host separated to the service of the sons of Asaph, and of Heman, and of Jeduthun, who should prophesy with harps, with psalteries, and with cymbals: and the number of the workmen according to their service was: MC VC