Boruch Dayan Ha’emes: Lelover Rebbe, Rav Yissachar Dov Biderman zt”l, Passes Away After Collapsing in a Mikvah
A heavy pall of mourning has descended upon the Chassidic world, and the courts of Lelov in particular, following the sudden passing of Rav Yissachar Dov Biderman, the Lelover Rebbe zt”l. The Rebbe collapsed while immersing in a mikvah. He was 84 years old.
The Rebbe arrived earlier today, as was his custom, to immerse in the private mikvah located at the Lelover beis medrash on Rechov Tzefania Street in Yerushalayim. After he remained in the water longer than usual, those accompanying him raised the alarm. Emergency medical teams were summoned and carried out prolonged resuscitation efforts, but tragically, doctors were forced to declare his petirah.
Paramedic Naftali Sofer of Hatzalah, together with emergency medical technicians Yosef Herpaz and Kobi Marder, described the scene: “When we arrived, we found a man unconscious, without a pulse or respiration. Witnesses told us he had been pulled from the water in that condition. Together with additional paramedics and EMTs from MDA and Hatzalah, we immediately began advanced resuscitation efforts, including chest compressions, assisted ventilation, and life-saving medications. Sadly, despite all efforts, MDA paramedics were forced to pronounce his passing at the scene.”
Reb Bentzi Oiring, commander of the Yerushalayim district of ZAKA, stated: “The Rebbe collapsed in the mikvah of the Lelover Chassidus on Rechov Tzefania in Yerushalayim. His attendants, noticing that he was delayed for an extended period, called emergency services. MDA teams confirmed his passing. ZAKA volunteers are operating at the scene, ensuring that kavod hameis is fully preserved.”
Following his petirah, the niftar was brought into the Lelover beis medrash, where the paroches was removed and candles were lit around him.
The levayah is scheduled to take place this evening, departing from the Kedushas Mordechai Lelov beis medrash at 39 Rechov Bar Ilan in Yerushalayim, and proceeding to Har Haceisim. The levayah is expected to begin after 8:00 p.m., following the arrival of the Rebbe’s son on a flight from London.
Rav Yissachar Dov Biderman was born in Yerushalayim on the 10th of Kislev, 5702 (1941), to his father, the Lelover Rebbe, Rav Moshe Mordechai Biderman, and his mother, Rebbetzin Ettel, of the Schwartz family.
At his bris, he was named Yissachar Dov after the Belzer Rebbe. As a young child, he moved with his family to Tel Aviv, where his father relocated from the Batei Varsha neighborhood of Yerushalayim. He studied at the Belzer cheder and later in the Belzer yeshivah, eventually learning in the Lelover yeshivah in Yerushalayim’s Beis Yisrael neighborhood, where he distinguished himself as one of its outstanding talmidim.
After his marriage, he continued to immerse himself in limud haTorah and supported his family by writing Sifrei Torah. Known for his ascetic lifestyle, the Rebbe was entirely devoted to avodas hakodesh. Those close to him described him as exceptionally gentle and refined, visibly carrying forward the sacred path and spiritual bearing of his father. He was especially renowned for his profound ahavas Yisrael, in the tradition of the Lelover rebbes from the dynasty’s founder, Rav Dovid’l of Lelov, onward.
In later years, he assumed the mantle of leadership as Lelover Rebbe and headed the Kedushas Mordechai Lelov beis medrash on Rechov Bar Ilan in Yerushalayim, which was established in 2007. His chassidim reside throughout Israel and around the world, and many would travel to participate in his tishen on yahrtzeits and Yomim Tovim. On Motzaei Shabbos, following Havdalah, the Rebbe was known to distribute cigarettes to those present, a custom remembered fondly by his followers.
The Rebbe’s sudden passing comes just two days before the yahrtzeit of his brother, the Lelover Rebbe Rav Avraham Shlomo Biderman, who passed away on the 16th of Shevat in 5760.
He is survived by his family and many descendants who continue his sacred path, as well as his brothers, the Lelover rebbes of Nikolsburg and Lelov Ezras Torah.
Yehi zichro boruch.
