The role of a priest creates a constant tension between his personal family obligations and his public state of holiness. In defining the boundaries of ritual impurity, a central question arises regarding the precise identity of the person for whom mourning is restricted, as well as the nature of the prohibition itself. The primary approach among commentators [ספורנו, רבנו בחיי, שד ל ואחרים] understands the subject of these laws to be a master, leader, or respected figure. This perspective provides a broad rationale for the restrictions on impurity: a priest is a distinguished individual whose life is dedicated to teaching the community and serving in the Temple. Therefore, it is inappropriate for him to compromise his elevated status by coming into contact with the dead, unless they are his immediate relatives.
Within this framework, interpretations diverge regarding exactly who is being addressed. Some scholars [שד״ל, ביאור יש״ר] maintain that the focus is specifically on the High Priest, whose exceptional level of holiness absolutely forbids him from becoming impure under any circumstances. Conversely, other commentators [בכור שור, חזקוני] argue that the warning is directed at a regular priest. In this view, a regular priest is cautioned not to become impure even for a deceased High Priest, despite the latter's immense honor and leadership, unless they are closely related.
In contrast to the focus on public leadership, another interpretive tradition [רש״י, רשב״ם, מלבי ם ובעקבות חז״ל] views the subject much more intimately, understanding the primary figure simply as a husband. Rather than addressing the priest's civic standing, this approach explores whether he is permitted to become impure for his deceased wife. The commentators agree that a priest may become impure to bury a legally valid wife. However, he is strictly forbidden to do so for a wife whom he was originally disqualified from marrying, as such a union actively profanes his sacred status. This concept of profanation also signifies a descent from holiness into the mundane. Furthermore, it indicates that the restriction applies specifically when the priest is currently in a state of purity; if he is already impure and engaged in burying the dead, the parameters of the warning shift.
These regulations are governed by two essential conditions tied to the deceased's relationship with the broader community. First, the prohibition against becoming impure applies only when the deceased is situated among their people, meaning there are other individuals available to handle the burial. If a priest encounters an abandoned corpse with no one else to provide a burial, he is not only permitted but obligated to become impure to bury the dead [רש״י, רש ר הירש]. Second, a priest is only allowed to become impure for his close relatives if they lived in accordance with the ways of the community. If a relative abandoned the community's path and rejected the yoke of the Torah and its Commandments, the priest loses the right to become impure for them [מלבי״ם, תורה תמימה].