레위기 4:12의 주석

אל מקום טהור [EVEN THE WHOLE BULLOCK SHALL HE BRING FORTH WITHOUT THE CAMP] UNTO A CLEAN PLACE — Because there was outside the city (Jerusalem) a place intended for depositing unclean things viz., to cast there the plague-stricken stones (cf. Leviticus 14:45) and to serve as a place of burial, Scripture was compelled to state regarding this term “without the camp” — which in the case of Jerusalem, is identical with: “without the city” — that the place where it was to be burnt shall be a clean one.

אל שפך הדשן, seeing that the Torah writes in Leviticus 6,4,והוציא את הדשן אל מחוץ למחנה “he shall take the ashes outside the encampment,” the Torah here had to tell us where the ash was stored.

אל שפך הדשן ישרף אותו, “on the place where the ash is poured and burn it.” The Torah commanded that the burning of this sin offering including its skin must be performed outside the precincts of the Temple so that it would be observed by the public at large. This would show the people that even a High Priest would acknowledge that he had sinned and ask G’d to forgive him.