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

And the prince of princes of the Levites was Eleazar the son of Aaron the priest: he had the oversight of them that kept the charge of the sanctuary.

And the high priest among his brethren, on whose head the anointing oil was poured, and who is consecrated to put on the garments, shall not uncover his head, nor rend his garments. Neither shall he come near any person dead, nor make himself unclean for his father and for his mother; neither 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 upon him: I am Jehovah. read more.
And he shall take a wife in her virginity. A widow, or a divorced woman, or a dishonoured one, a harlot, these shall he not take; but he shall take as wife a virgin from among his peoples. And he shall not profane his seed among his peoples; for I am Jehovah who do hallow him.