The sons of Izhar: Shelomith was the first.
The sons of Hebron: Jeriah the first, Amariah the second, Jahaziel the third and Jekameam the fourth.
The sons of Uzziel: Micah the first and Ishiah the second.
The sons of Merari: Mahli and Mushi. The sons of Mahli: Eleazar and Kish.
Eleazar died without having sons: he had only daughters. Their cousins, the sons of Kish, married them.
The sons of Mushi: Mahli, Eder and Jerimoth—three in all.
These were the descendants of Levi by their families—the heads of families as they were registered under their names and counted individually, that is, the workers twenty years old or more who served in the temple of the LORD.
For David had said, “Since the LORD, the God of Israel, has granted rest to his people and has come to dwell in Jerusalem forever,
the Levites no longer need to carry the tabernacle or any of the articles used in its service.”
According to the last instructions of David, the Levites were counted from those twenty years old or more.
The duty of the Levites was to help Aaron’s descendants in the service of the temple of the LORD: to be in charge of the courtyards, the side rooms, the purification of all sacred things and the performance of other duties at the house of God.