Números 18

But they may be with you, and they may watch over the care of the tabernacle and all its ceremonies. A foreigner shall not be mixed with you.

Se juntarán, pues, contigo, y tendrán el cargo del tabernáculo del testimonio en todo el servicio del tabernáculo; ningún extraño se ha de llegar á vosotros.

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.

They shall be joined to you and keep the responsibility of the Tent of Meeting, for all the service of the Tent. A stranger shall not come near to you.