Numbers 3:30 - John Gill's Exposition of the Entire Bible

And the chief of the house of the father of the families of the Kohathites [shall be] Elizaphan the son of Uzziel. The same man, who, with his brother Mishael, carried Nadab and Abihu out of the camp, and buried them, Leviticus 10:4; he descended from the last and youngest of the families of the Kohathites; and some think this was one reason at least of Korah's dissatisfaction, and of his entering into a conspiracy against Moses and Aaron, because one of a younger family of his house was preferred to this dignity before him.