Behar Sinai - Many commentators speak of the significance of the Torah being given on Har Sinai. They teach us that just as Har sinai was the most "humble" mountain, and yet merited the reception of the Torah, so too we must be humble in our lives and we will receive great things.
The famous midrash of mountains that argued over who was most fit to receive the Torah on its summit, places Har Sinai as the most plain, simplest mountain. This simple mountain is blessed with the shechinah's presence, and an increase of qedousha that lasts until today.
We can also explain the beginning of Pirkeh Avot in the same vein. The first mishnah states that Moses receive the Torah "from" Sinai. Now, this cannot be taken as literal for a mountain can't really "do" anything! What does this Mishnah mean?
Moshe merited to be the one to receive the Torah from Hashem, because he was humble in nature, like Har Sinai. This is the point of the Mishnah by stating that Moshe received the Torah from Sinai, meaning that because Moshe was like Sinai, he was able to be the person to bring the Torah to the nation.
This was not easy for Moshe. Moshe Rabeynou, we must remember grew up amongst Egyptians, in the palace of Pharaoh. It stands to reason in clear fashion that Moshe was influenced by the highly immoral Egyptians. And this is hinted to by a story written by the Baal Tiferet Leyisrael.
The story is told of a great leader who lived many years ago, in a far away desert. He heard of the great tales of Moshe, leading a nation of slaves out of the most powerful nation of the time, Egypt. The leader wanted to see a picture of this Moshe that everyone spoke so highly of. The great leader promptly dispatched an artist to carefully paint the features of Moshe.
When the artist returned with a painting of Moshe, the great leader was shocked to see a painting of a man who did not look trustworthy in the least. The painting showed a man who look to be into thievery, drinking, and immorality. The leader did not understand how this painting could be depicting the great "Moshe."
After 6 weeks of travel, the leader reached the encampment of Bnei Yisrael and met with Moshe. He inquired about the apparent contradiction. Moshe answered: "The truth is simple. When I was younger, I did have all the traits you mentioned, this a strong inclination to act upon those urges. An inclination that is probably greater than most men. Still, I stayed strong, and never acted on them, until slowly – I conquered them one by one."
Needless to say, there is a lot to learn from Moshe. What we must also realize, is that there is a lot to learn from Har Sinai as well.com