the children of Aaron

1 Chronicles 6:16-20, 49, 50
The sons of Levi: Gershom, Kohath, and Merari. . . .

1 Chronicles 12:26-28
From the Levites: 4, 600, . . .

Exodus 6:16-22
These were the names of the sons of Levi according to their records: Gershon, Kohath, and Merari. Levi lived 137 years. . . .

Numbers 3:4
Nadab and Abihu, however, died in the presence of the LORD when they offered strange fire before the LORD in the Wilderness of Sinai. And since they had no sons, only Eleazar and Ithamar served as priests during the lifetime of their father Aaron.