1 Chronicles 15:4
David also called together Aaron's descendants and the Levites.
Exodus 6:16-22
These are the names of the sons of Levi according to their generations: Gershon and Kohath and Merari. Levi lived one hundred and thirty-seven years.
Numbers 3:4
Nadab and Abihu died in Jehovah's presence because they offered unauthorized fire in his presence in the Desert of Sinai. They had no children. So only Eleazar and Ithamar served as priests during the lifetime of their father Aaron.
1 Chronicles 6:16-30
The sons of Levi: Gershon, Kohath and Merari.
1 Chronicles 6:49-50
But Aaron and his descendants were the ones who presented offerings on the altar of burnt offering and on the altar of incense in connection with all that was done in the Most Holy Place, making atonement for Israel, in accordance with all that Moses the servant of God had commanded.
1 Chronicles 12:26-28
From the tribe of Levi, there were four thousand six hundred troops.