"As for the sons of Merari, you shall list them by their clans and their fathers' houses.
This is the service of the clans of the sons of the Gershonites in the tent of meeting, and their guard duty is to be under the direction of Ithamar the son of Aaron the priest.
From thirty years old up to fifty years old, you shall list them, everyone who can come on duty, to do the service of the tent of meeting.
also the pillars around the court, with their bases and pegs and cords.
And four wagons and eight oxen he gave to the sons of Merari, according to their service, under the direction of Ithamar the son of Aaron the priest.