Numbers 4:28

This is the service of the families of the sons of Gershon in the Tent of Meeting (tabernacle); and their duties shall be under the direction of Ithamar the son of Aaron, the [high] priest.

Numbers 4:33

This is the work of the families of the sons of Merari, according to all their tasks in the Tent of Meeting (tabernacle), under the direction of Ithamar the son of Aaron, the priest.”

1 Corinthians 12:5-6

And there are [distinctive] varieties of ministries and service, but it is the same Lord [who is served].

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