Thematic Bible: Specially required to avoid

And Jehovah saith unto Moses, 'Speak unto the priests, sons of Aaron, and thou hast said unto them, For any person a priest is not defiled among his people, except for his relation who is near unto him -- for his mother, and for his father, and for his son, and for his daughter, and for his brother. and for his sister, the virgin, who is near unto him, who hath not been to a man; for her he is defiled. read more.
A master priest doth not defile himself among his people -- to pollute himself; they do not make baldness on their head, and the corner of their beard they do not shave, and in their flesh they do not make a cutting; they are holy to their God, and they pollute not the name of their God, for the fire-offerings of Jehovah, bread of their God, they are bringing near, and have been holy.

nor beside any dead person doth he come; for his father and for his mother he doth not defile himself; nor from the sanctuary doth he go out, nor doth he pollute the sanctuary of his God, for the separation of the anointing oil of his God is on him; I am Jehovah.