שמות, פרק ל׳, פסוק כ״א

Approaching the sacred space of the Tabernacle requires more than physical readiness; it demands profound mental and spiritual preparation. The requirement for the priests to wash their hands and feet before serving is not merely an act of physical cleanliness. Instead, it is a transformative process where the priests submit themselves to the demands of the sanctuary. Through this act, they acknowledge that they are no longer operating as private individuals, but rather as official representatives of holiness [רש״ר הירש].

The instruction to wash is repeated to emphasize that this is an absolute necessity [קאסוטו] and a permanent, constant duty [חזקוני, אבן עזרא]. This repetition reveals that the core of the commandment is the act of washing from a vessel, rather than being restricted to the copper basin alone. Any sacred vessel is valid for this purpose, much like how the High Priest utilized a special golden jug prepared specifically for him on the Day of Atonement [ביאור יש״ר, מלבי״ם]. The procedure requires strict attention to precise legal details, including whether the hands and feet should be washed together or separately, and ensuring there are no physical barriers on the skin that would invalidate the washing [צפנת פענח].

The severe warning of death is also repeated to expand the scope of the punishment. While earlier instructions established the death penalty for a priest who enters the main sanctuary without washing, the law adds that a priest who approaches the outdoor altar in the courtyard to serve without washing is equally liable to death [רש״י, מלבי״ם, ביאור יש״ר, אדרת אליהו]. This expansion is necessary due to a fundamental legal principle: punishments cannot be applied through logical deduction or comparison. Therefore, the penalty must be explicitly stated for every specific location [משכיל לדוד]. The severity of this rule is absolute. Even a priest who has just emerged from immersing in a ritual bath, fully purified from severe impurity, is not exempt. If he fails to wash his hands and feet, his prior immersion will not save him, and he incurs the death penalty [אור החיים].

The commandment is established as an eternal statute, meaning it is an absolute decree that remains unaffected by changing circumstances [ביאור שטיינזלץ]. If a priest performs his duties without first washing, his service is completely invalidated. In this state, he is treated just like a priest who attempts to serve without the proper priestly garments, rendering him entirely unfit for the sacred work [תורה תמימה]. This obligation applies equally to Aaron and his future descendants [אבן עזרא הקצר, קאסוטו]. This shared responsibility establishes a broader rule: any requirement that is essential for an ordinary priest to serve, such as washing hands and feet at the beginning of the day, is equally essential for the High Priest [תורה תמימה]. Furthermore, the application of this law adapts slightly across history. During the Israelites' wanderings in the desert, the sanctity of the sanctuary was so strictly guarded that washing was required merely to enter it, even if no service was performed. In future generations, however, the critical requirement to wash focuses specifically on the actual acts of offering and service [פרדס יוסף].