Leviticus 21:10-12

10‘The priest who is the highest among his brothers, on whose head the anointing oil has been poured and 1who has been consecrated to wear the garments, 2shall not 3uncover his head nor tear his clothes;

114nor shall he approach any dead person, nor defile himself even for his father or his mother;

125nor shall he go out of the sanctuary nor profane the sanctuary of his God, for 6the consecration of the anointing oil of his God is on him; I am the Lord.