Let them observe my precepts, so that they may not fall under sin, and die in the Sanctuary, when they will have defiled it. I am the Lord, who sanctifies them.
And Aaron and his sons will use them when they enter the tabernacle of the testimony, and when they approach toward the altar, in order to minister in the sanctuary, lest, being guilty of iniquity, they may die. It shall be a law forever for Aaron, and for his offspring after him."
And he instructed him, saying: Speak to your brother Aaron, so that he may not, at any time, enter into the Sanctuary, which is within the veil, before the propitiatory by which the ark is covered, so that he may not die, (for I will appear in a cloud above the oracle)
Keep my commandments. Do not be willing to do the things which have been done by those who were before you, and do not be polluted by these things. I am the Lord your God.
And you shall not sin in this way: by reserving the excellent and fat things for yourselves, lest you pollute the oblations of the sons of Israel, and lest you die."