Thematic Bible: The title appears after the institution of the office

and Eleazar the son of Aaron the priest was the chief of the leaders of Levi, and had the oversight of those who perform the duties of the sanctuary.

'The priest who is the highest among his brothers, on whose head the anointing oil has been poured and who has been consecrated to wear the garments, shall not uncover his head nor tear his clothes; nor shall he approach any dead person, nor defile himself even for his father or his mother; nor shall he go out of the sanctuary nor profane the sanctuary of his God, for the consecration of the anointing oil of his God is on him; I am the LORD. read more.
'He shall take a wife in her virginity. 'A widow, or a divorced woman, or one who is profaned by harlotry, these he may not take; but rather he is to marry a virgin of his own people, so that he will not profane his offspring among his people; for I am the LORD who sanctifies him.'"