A remarkable ma’amad of kavod haTorah and rischa d’Oraisa took place in BMG’s Bais Moshe on Tuesday, as HaRav Bunim Schreiber shlit”a delivered a shiur on Maseches Mikvaos before a large crowd.

The shiur had originally been scheduled to take place in the ezras noshim, with expectations that it would be attended primarily by the approximately 150 avreichim currently learning Mikvaos. However, as the time for the shiur approached, it quickly became clear that the crowd was far larger than anticipated. With many more bnei Torah gathering to hear the Rosh Yeshiva, the shiur was moved into the main beis medrash to accommodate the olam.

Rav Schreiber delivered a masterful shiur, marked by his extraordinary depth, clarity, and breadth.

The Rosh Yeshiva’s gabbai later related an extraordinary detail that added a deeper dimension to what the olam had just witnessed.

On the drive home, the Rosh Yeshiva shared that he had been told beforehand that the shiur would be delivered to a group of around 150 avreichim who were already “areingetun” in the sugya of Mikvaos. Accordingly, he had prepared a shiur geared specifically for bnei Torah who were holding in the sugya.

Upon arriving, however, the Rosh Yeshiva immediately saw that the crowd was far larger than expected, and that many of those present had likely come simply to hear his shiur, even if they were not necessarily holding in the sugya on that level. At that moment, he faced a decision: proceed with the shiur he had prepared, knowing that many would struggle to follow, or set it aside and deliver a different shiur entirely.

Instantly, the Rosh Yeshiva chose the latter.

Without hesitation, and without a single sefer in front of him, Rav Schreiber put aside the shiur he had prepared and instead delivered a different shiur on the sugya — one that retained the depth and lomdus expected from such a shiur, while being accessible to the broader olam that had gathered.

The result was nothing short of a masterpiece. The shiur was delivered with stunning clarity and precision, enabling the full crowd to appreciate the sugya.