ESV: 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.
NIV: 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.
NASB: They shall join you and perform the duties of the tent of meeting, for all the service of the tent; but an unauthorized person shall not come near you.
CSB: They are to join you and guard the tent of meeting, doing all the work at the tent, but no unauthorized person may come near you.
NLT: The Levites must join you in fulfilling their responsibilities for the care and maintenance of the Tabernacle, but no unauthorized person may assist you.
KJV: 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.
NKJV: They shall be joined with you and attend to the needs of the tabernacle of meeting, for all the work of the tabernacle; but an outsider shall not come near you.