Numbers 3:32-34

Amplified Bible

³² Eleazar, the son of Aaron the priest, was chief of the leaders of the Levites; he supervised those who performed the duties of the sanctuary.

³³ Of Merari were the families of the Mahlites and the Mushites; these are the families of Merari. ³⁴ The males who were numbered, every male from a month old and upward totaled 6,200.