The Kohanim must wear their priestly garments during service

This mitzvah requires that every kohen who serves in the Temple must do so while wearing the prescribed priestly garments. The clothing was not merely functional but carried profound symbolic meaning, reflecting the dignity, beauty, and sanctity of the kohanim’s service.

The garments included the tunic, sash, turban, and trousers for ordinary kohanim, and additional garments for the Kohen Gadol, such as the breastplate, ephod, robe, and golden plate. Their purpose was to elevate the service, inspiring awe and reverence both in the kohanim themselves and in the people witnessing the Divine service.

Failure to wear the garments properly rendered the service invalid, and in some cases made the kohen liable for punishment. The mitzvah highlights the importance of sanctity, order, and external expression in serving Hashem, teaching that holiness must be reflected outwardly as well as inwardly.

Commentary & Classical Explanation:

• Rambam (Hilchot Klei HaMikdash 10:4): Rules that a kohen who serves without the garments is considered a non-priest and his service is invalid.
• Sefer HaChinuch (Mitzvah 99): Explains that the garments symbolize glory and beauty, reinforcing the honor of Hashem’s service.
• Talmud (Zevachim 17b): Derives that priestly garments are indispensable; without them the service is invalid.
• Rashi (Ex. 28:2): Notes that the garments were made for kavod and tiferet, instilling dignity and splendor in the kohanim’s service.
• Ramban (Ex. 28:2): Adds that the garments not only bring external beauty but also inspire inner sanctity and reverence.