Leviticus 21
The holiness regulations for the priesthood apply a higher standard to those who serve at the altar, grounded in the logic of proximity: the closer to the holy God, the more intensive the holiness requirement. Ordinary priests may become ritually impure for close relatives (parents, children, siblings, dependent unmarried sisters) but not for in-laws; they must not practice mourning rites (shaved head, trimmed beard, body cuts) and must not marry divorced women or prostitutes. The high priest is held to a more restrictive standard: he cannot become impure even for his parents, cannot leave the sanctuary, and must marry only a virgin — because the genealogical succession of the anointed office requires the highest standard of priestly family purity. Physical defects disqualify from altar service (though not from eating the priestly portions): blindness, lameness, disfigured face, deformed limbs, and other conditions that affect the body's completeness. The parallel between the unblemished animal on the altar and the unblemished priest at the altar communicates the Levitical system's consistent standard: the offering and the one who presents the offering are measured by the same holiness.
Leviticus 21:16
The Lord said to Moses. A new divine speech introduces the physical disqualifications for priestly service. The regulations that follow address a dimension of priestly holiness that the previous regulations did not: physical completeness. The priest who serves at the altar must not have a physical defect that would make his service imperfect in the way that the animals offered on the altar must be without defect.
Leviticus 21:15
I am the Lord, who makes him holy. The I am the Lord, who makes him holy formula closes the high priestly marriage regulations. The holiness that requires the virgin-only marriage is not the high priest's own achievement but God's gift: I make him holy. The one who makes the priests holy is the one who establishes the standards that protect and express that holiness. The Lord who makes the high priest holy also establishes the marriage requirements that maintain the holiness he gives.
Leviticus 21:1
The Lord said to Moses: speak to the priests, the sons of Aaron, and say to them. The holiness regulations for the priesthood address those who serve at the altar with a higher standard than the community at large: the priests who mediate between God and the covenant community must themselves embody a more intensive holiness. The higher standard is not arbitrary privilege but the logic of proximity: those who come closest to the holy God must maintain the most rigorous holiness. The regulations that follow in chapters 21–22 are the priestly application of the holiness principle that chapter 19 applied to the whole community.
Leviticus 21:2
A priest must not make himself ceremonially unclean for any of his people who die, except for a close relative, such as his mother or father, his son or daughter, his brother. The general prohibition on priestly contact with the dead is immediately qualified by the close-relative exception: the priest may become ritually impure for the death of a parent, child, or sibling. The close-relative exception communicates the covenant's recognition of the natural bonds of family grief: even the priest's elevated holiness does not require the suppression of normal human mourning for immediate family. The priest who can grieve a parent or sibling in death is the priest who retains his humanity within his holiness.