“These are those who were counted of the families of the sons of Merari, whom Moses and Aaron counted according to the commandment of Yahweh by Moses.”
Numbers 4:45 (WEB)
Context Reading
43from thirty years old and upward even to fifty years old — everyone who entered into the service for work in the Tent of Meeting, 44even those who were counted of them by their families, were three thousand two hundred. 45These are those who were counted of the families of the sons of Merari, whom Moses and Aaron counted according to the commandment of Yahweh by Moses. 46All those who were counted of the Levites whom Moses and Aaron and the princes of Israel counted, by their families and by their fathers’ houses, 47from thirty years old and upward even to fifty years old, everyone who entered in to do the work of service and the work of bearing burdens in the Tent of Meeting,