King James Version
And they shall be joined unto thee, and keep the charge of the tabernacle of the congregation, for all the service of the tabernacle: and a stranger shall not come nigh unto you.English Standard Version
They shall join you and keep guard over the tent of meeting for all the service of the tent, and no outsider shall come near you.New International Version
They are to join you and be responsible for the care of the Tent of Meeting-all the work at the Tent-and no one else may come near where you are.