The Cohanim used to eat their Korbanos like kings; and we all are similar to Cohanim. Before Matan Torah it says we should be: מַׁמְלֶכֶת כֹהֲנִים a nation of Cohanim, and Rashi says Cohanim is a Lashon שְרָּרָּה nobility, and the first mother of Klal Yisroel was Sara Imeinu, whose name means: nobility! Do we really know what a Cohen was? And all of us are similar to Cohanim. No wonder the Rambam says (at the end of Hilchos Shemita v’Yovel) that every Yid can become Kodesh Kodoshim like a Levi Mamash when he becomes a Ben Torah.
And we are all automatically: מַׁמְלֶכֶת כֹהֲנִים a nation of Cohanim (which means: שְרָּרָּה nobility). Notice how the Torah calls us “Cohanim”, which indeed means: שְרָּרָּה nobility, yet the Torah calls us Cohanim. Perhaps this comes to tell us that although we are all leaders, we are Cohen types of leaders, which is a better and more refined type. This explains why right after the Parsha of Milu'im, the Torah speaks about the daily Korban Tamid, which was 2 sheep, since this constantly reminded the Cohen about being an Anav, despite the: שְרָּרָּה nobility he had.
Actually, Pinchos became a first-class Cohen after: וַיִקַח רֹׁמַח בְיָדוֹ כה ז he took a spear in his hand, and after the Chet HaEigel, the whole Shevet Levi were told to go to war against their own relatives. There are two stories in Chazal where Cohanim got carried away in their Avoda (in one case a Cohen killed his friend, and in the other case he broke his foot). The Rambam (at the end of Hilchos Shemita v’Yovel) refers to these people as Hashem’s soldiers.
We are all this way, since we’re called: צִבְאוֹת ה' the army of Hashem, and even a Jewish woman is called Eishes “Chayil”. Without a question, this “war” has to do with Milchemes HaYetzer, where the Cohen was a special soldier, more than the rest of Klal Yisroel. And there is a Makom (time and place) to Davka be tough on yourself and on others, or else everything becomes Hefker, Chas V'shalom.
We are different than Mitzri'im who actually worshipped sheep, which can symbolize their passive stance against their Yetzer Hara.
