This is the service of the families of the sons of Gershon in the tabernacle of the congregation: and their charge shall be under the hand of Ithamar the son of Aaron the priest.
Numbers 4:33
This is the service of the Merarite clans regarding all their work at the tent of meeting, under the direction of Ithamar son of Aaron the priest."
1 Corinthians 12:5
There are different ministries, but the same Lord.
1 Corinthians 12:6
And there are different activities, but the same God is active in everyone and everything.