Numbers 3:4-6

Tree of Life Version

⁴ But Nadab and Abihu died before Adonai for offering unauthorized fire^[a] before Adonai in the Sinai wilderness—they had no children. So Eleazar and Ithamar served as kohanim under Aaron their father.

⁵ Then Adonai spoke to Moses saying, ⁶ “Gather the tribe of Levi near, and appoint them to attend to Aaron the kohen.