Parshas Ki Sisah

The Chafetz Chaim- who was a Kohen- once asked R’ Shimon Schwab “Why aren’t you a Kohen?” R’ Schwab, not knowing what that Chafetz Chaim wanted, answered, “because my father wasn’t a Kohen and nor was his father”. The Chafetz Chaim said that after Klal Yisroel made the Eigal Moshe said ‘Mi l’Hashem alai’ and my great grand father- who was from Shevet Levi answered the call, that is why this Shevet was imbued with extra kedusha. Only Shevet Levi had the courage to stand up for what was right and not get swept up with the masses. That is why i am a Kohen and your not.
How was it that every single descendent of Levi had that courage and not one other Jew was able to join them?

The Rambam in the beginning of hilchos Avodah Zara says that the teachings of Avraham Yitzchak and Yaakov- Yichud Hashem- that Hashem is the sole creator of the universe and he is the only one that runs the world- was all but forgotten from the world- even from Klal Yisroel while they were enslaved in Egypt. The only ones that held on to the teachings of the Avos were the descendants of Levi, the belief in Hashem and his Oneness never left them. Every single descendant of Levi from when they were a newborn in the cradle was ingrained with the emunah of Hashem. The Alter from Navordik says that it is this that gave them the clarity of mind when the world had gone insane. The fact that this teaching wasn’t something they merely learned- but rather it was a deeply rooted tradition that was part of their essence of who they were. When all of Klal Yisroel was lost and was wondering if the true way to serve Hashem is through the Golden Calf- Shevet Levi was able to remain true to their upbringing. The deeper understanding of this is; if something is proven through logic and even if it’s clearly shown to us – it can be disproved if questioned under the wrong circumstances. But if we truly believe in Hashem and believe that he’s that great that we cannot fathom his greatness, then no question or circumstance can change our mind for our belief and tradition is deeper and greater then anything in this world.