פרשת שמיני – בעדך ובעד העם
Parashat Shemini opens with the eight day of the inauguration of the Mishkan, the point where the service of the Mishkan, until that point performed by Moshe, began to be performed by Aharon and his sons. This begins a process that would continue until the destruction of the second Beit HaMikdash, where the descendants of Aharon brought the korbanot of Bnei Yisrael before ‘א. However, that day was not merely the beginning of this process. Many of the services performed that day would not become part of the regular ritual of the Mishkan or Mikdash. An excellent example of this would be the two sin-offerings that Aharon and his sons bring.
In Vayikra 9:7 Aharon is told, “Come forward to the altar and sacrifice your sin offering and your burnt offering, making expiation for yourself and for the people; and sacrifice the people’s offering and make expiation for them, as the LoRD has commanded.” The phrase “for yourself and for the people” would seem to be odd. Is Aharon not part of the people? Why would he need a separate atonement? Even stranger, this is not the only time such a formulation is found. In Vayikra 16 Moshe describes the service of Yom HaKippurim, and we find the same basic formulation, of Aharon atoning for himself and the greater unit that he is a part of, four times (verses 6, 11, 17, & 24), with the last mimicking 9:7 almost exactly. “He shall bathe his body in water in the holy precinct and put on his vestments; then he shall come out and offer his burnt offering and the burnt offering of the people, making expiation for himself and for the people.” Once again, the strangeness of the phrasing stands out. Is Aharon not a part of the people? Why isn’t their expiation enough?
The first step to understanding this separation is to appreciate its nature. This isn’t just a matter of redundancy in speech, this is something that was effected in real life. The expiation of Aharon and the People occurs in two stages. Vayikra 9:8 says that “Aaron came forward to the altar and slaughtered his calf of sin offering.” Nothing in this verse, or the ensuing description of the offering process, says anything about the nature of this sin offering. Verse 15, in contrast, is quite clear: “Next he brought forward the people’s offering. He took the goat for the people’s sin offering, and slaughtered it, and presented it as a sin offering like the previous one.” The sin offering brought in verse 15 is that of the people, as opposed to the previous one. That one, therefore, must be a sin offering for Aharon himself. This answers the question of the sufficiency of the national expiation for the expiation of Aharon. Aharon is indeed part of the people and would have been covered by their offering. His offering comes before the national one, when he had still not received expiation.
The problem that remains is the question of why? Why does Aharon have to give a sin offering before that of the people can be given? Some hint of the answer lies in the nature of the occasions regarding which this “for himself and for the people” expression is found, the eight inaugural day of the Mishkan and Yom HaKippurim. Both of these days are about having a clean start for the beginning of a new process, about being spiritually fit to begin serving ‘א anew. This is something that occurs on both the individual and collective levels. However, an individual, as part of a unit, cannot focus on the whole and the part simultaneously, and the question then would be which should be attended to first. The model of the Mishkan is clear, the individual must cleanse themselves first, before getting to work on the whole. However, it is also clear that Aharon’s expiation is meant to make him ready to being the sin offering of the people. The individual should make themselves ready first, but they should do so for the sake of better serving the whole. The Torah thus delineates a basic model that applies to all aspects of life. A person is always part of a people. A people is always part of the peoples of our world. And the first step to making it a better world is for all persons to be the best persons they can be, in order that all peoples will be the best peoples they can be, and our world will be the best that it can be.
 Translations from the Jewish Study Bible.