Therefore thou and thy sons with thee shall keep your kohen's office for everything of the altar, and within the vail; and ye shall serve: I have given your kohen's office unto you as a service of gift: and the stranger that cometh nigh shall be put to death.
But those that encamp before the tabernacle toward the east, even before the tabernacle of the congregation eastward, shall be Moshe, and Aharon and his sons, keeping the charge of the sanctuary for the charge of the children of Yisrael; and the stranger that cometh nigh shall be put to death.
And they shall be upon Aharon, and upon his sons, when they come in unto the tabernacle of the congregation, or when they come near unto the altar to minister in the holy place; that they bear not iniquity, and die: it shall be a statute for ever unto him and his seed after him.