Defilement: Priests: Specially Required to Avoid

Then the LORD said to Moses, “Speak to Aaron’s sons, the priests, and tell them that a priest is not to defile himself for a dead person among his people, …

He must not go near any dead body; he must not defile himself, even for his father or mother.

He must not leave or desecrate the sanctuary of his God, for the consecration of the anointing oil of his God is on him. I am the LORD.