These are the generations of Aaron and Moses in the day that the Lord spoke to Moses in mount Sinai. 2And these the names of the sons of Aaron: his firstborn Nadab, then Abiu, and Eleazar, and Ithamar. 3These the names of the sons of Aaron the priests that were anointed, and whose hands were filled and consecrated, to do the functions of priesthood. 4Now Nadab and Abiu died, without children, when they offered strange fire before the Lord, in the desert of Sinai: and Eleazar and Ithamar performed the priestly office in the presence of Aaron their father.