Numbers 3:31-35

Their duty included the ark, the table, the lampstand, the altars, the utensils of the sanctuary with which they ministered, the screen, and all the work relating to them. And Eleazar the son of Aaron the priest was to be chief over the leaders of the Levites, with oversight of those who kept charge of the sanctuary. From Merari came the family of the Mahlites and the family of the Mushites; these were the families of Merari. And those who were numbered, according to the number of all the males from a month old and above, were six thousand two hundred. The leader of the fathers’ house of the families of Merari was Zuriel the son of Abihail. These were to camp on the north side of the tabernacle.