So then Aaron and his sons shall enter when the camp is to set forward, and take down the screening veil, - and enwrap therein the ark of the testimony;

But thou and thy sons with thee, shall keep the charge of your priesthood, as to every matter of the altar and as to the interior of the veil, and shall do the laborious work, as a laborious service of gifts, do I give your priesthood, and, the stranger who cometh near shall be put to death.