The Power of Our Sages

When Rosh Hashana falls out on Shabbos, we don’t blow the shofar. The reason is a Rabbinic enactment to avoid possible desecration of Shabbos.

What is this power that the Rabbis have to come along and cancel the mitzva?
What if someone forgot and blew the shofar anyway? Did they get a mitzva?
What would the halacha be in situations of great persecution and duress - if the only opportunity to blow shofar would be on Shabbos?

Take a trip in the time machine to Kovno, Lithuania, 1942 and Moscow, 1959 and explore the power of the Sages to shape our observance of the Torah and mitzvos.

Listen to the shiur by Rabbi Crystal below and follow along with the sources here.