This is the service of the Merarite clans according to all their work at the Tent of Meeting, under the direction of Ithamar son of Aaron the priest.”
KJV
This [is] the service of the families of the sons of Merari, according to all their service, in the tabernacle of the congregation, under the hand of Ithamar the son of Aaron the priest.
ASV
This is the service of the families of the sons of Merari, according to all their service, in the tent of meeting, under the hand of Ithamar the son of Aaron the priest.