ופשט את בגדיו ולבש בגדים אחרים
Rashi observes that changing garments is not a chovah, obligation, but rather, proper conduct, so that the Kohen does not sully his clean vestments. It makes sense that the garments which one wears in the kitchen when he is cooking a pot of food for his master will not be the same garments that he will wear when serving his master. It just takes seichel, common sense. Thus, he dons other garments which are inferior to his vestments. How often do we read Rashi’s commentary and not incorporate it into our lifestyle? Upon serving the King/Master, one wears “different” clothes…