⁶ And David divided them into courses among the sons of Levi, namely, Gershon, Kohath, and Merari.

³⁰ And to stand every morning to thank and praise the Lord, and likewise at even:

³¹ And to offer all burnt sacrifices unto the Lord in the sabbaths, in the new moons, and on the set feasts, by number, according to the order commanded unto them, continually before the Lord:

24 Now these are the divisions of the sons of Aaron. The sons of Aaron; Nadab, and Abihu, Eleazar, and Ithamar.