Numbers 3:32-34

New Century Version

³² The main leader of the Levites was Eleazar son of Aaron, the priest, who was in charge of all those responsible for the Holy Place.

³³ The family groups of Mahli and Mushi belonged to Merari; they were the Merarite family groups. ³⁴ The number that was counted was 6,200 males one month old or older.