Rabbi Eliezer Diamond, beloved Jewish Theological Seminary professor and author, dies at 73
Over his illustrious career as a rabbinic scholar, Diamond mentored generations of rabbis
Rabbi Eliezer B. Diamond, who taught at the Jewish Theological Seminary for 35 years, died on Dec. 11 at 73. Courtesy of Jewish Theological Seminary
(JTA) — Rabbi Eliezer Diamond, who taught at the Jewish Theological Seminary for over three decades and left an indelible mark on generations of rabbis and Jewish scholars, has died.
Diamond died Thursday at 73, following several years battling multiple forms of cancer.
Born in 1952, Diamond received his bachelor’s and master’s degrees and rabbinical ordination from the Rabbi Isaac Elchanan Theological Seminary of Yeshiva University from 1968 to 1977.
But it was at JTS, the Conservative flagship in New York City, where Diamond earned his doctorate in Talmud and was the Rabbi Judah Nadich Professor of Talmud and Rabbinics, that his talents for mentorship and teaching flourished.
“My beloved teacher, a precious mentor and friend to countless Jewish leaders, Rabbi Eliezer Diamond z”l, has departed this world for the next,” wrote Rabbi Menachem Creditor, a scholar in residence and rabbi for the UJA-Federation of New York, in a post on Facebook. “His wisdom changed the course of my rabbinate many times over, something I know to be true for many others.”
Over his long career as a highly respected Talmud scholar, Diamond published a chapter on the rabbinic period in the “Schocken Guide to Jewish Books,” as well as entries in the “Reader’s Guide to Judaism” and “The Encyclopedia of the Bible and Its Reception.” In 2003, he published his only book, “Holy Men and Hunger Artists: Fasting and Asceticism in Rabbinic Culture,” with the Oxford University Press.
Diamond retired from JTS after the fall 2024 semester. In March during the previous semester, his legacy at the school was celebrated in a program titled “Diamonds of Torah: Honoring Rabbi Eliezer Diamond’s Teaching.”
“Generations of students have been profoundly impacted by his teaching, while his writings on prayer, asceticism, and issues of environmental law and ethics have influenced so many in the wider Jewish world as well,” wrote Shuly Rubin Schwartz, the chancellor of JTS, in a statement announcing his retirement.
On Facebook, where Diamond frequently posted photos of his wife, Rabbi Shelley Kniaz, five children and numerous grandchildren, he also documented his health struggles, providing deeply personal and rabbinic testimonies of his experience.
After hearing a grim prognosis in August 2024, Diamond posted, “I am not a statistic; I am a distinct human being, Eliezer Ben-Zion, son of Yehuda Idel and Chaya Golde. No one can know what the Shekhina’s plan is for me. What I do know is that She does not want me to live in the shadow of death but rather to bask in the radiance of life.”
As news of his death spread on Friday, many of Diamond’s former students and friends eulogized him on social media, many of them calling attention to Diamond’s legendary kindness.
Rabbi Ben Goldberg, a former student of Diamond and the rabbi of Congregation KTI in Port Chester, New York, wrote on Facebook that Diamond had “passed on to the supernal yeshiva, where I imagine he will be as beloved as he was in all of the places he taught in this world.” He recalled his time in Diamond’s classes at JTS where, he wrote, it was clear to all that Diamond “cared deeply about his students.”
“More than anything about Talmud, I’ll remember him writing lengthy (and unnecessary) notes of apology for saying something in class that might have been hurtful (which of course, it wasn’t),” Goldberg wrote.
Michael Rosenberg, another former student of Diamond who now serves on the faculty of the Hadar Institute, recalled meeting with Diamond in 2023 where the pair had a conversation that remained with him.
“That conversation was filled with pearl after pearl — about parenting, teaching, being in relationship,” wrote Rosenberg in a post on Facebook. “I am a better parent and teacher because of that conversation, and I am so sad that I will not get to follow up with my teacher and rabbi.”
Beyond his teaching at JTS, Diamond also previously taught at Stern College, the Reconstructionist Rabbinical College, the 92nd Street Y, several Ramah camps and the now-defunct Solomon Schechter High School.
Diamond was also a longtime resident of Teaneck, New Jersey, and congregant of Congregation Beth Sholom, where he regularly held a Torah study session on Shabbat afternoons.
“Rabbi Diamond’s wisdom (and hazzanus [singing]) were matched only by his wit,” wrote David Spielman, who was had Diamond as a high school teacher, in a post on Facebook. “A devout Brooklyn Dodgers fan, he once chastised someone for wearing a Yankees cap, saying it was inappropriate attire for Minyan. He would also say that Ebbets Field would be rebuilt ‘Bimharah b’yamainu.’ Rabbi Diamond will be remembered for that wit, wisdom, and perseverance now that his suffering is finally over.”
Beyond the numerous eulogies that have been written for him on social media, Diamond’s prolific reflections on life and faith endure.
“What draws me back to Hashem, if not to my life as a whole, is Psalm 23 גם כי אלך בגי צלמות לא אירא רע כי אתה עמדי. ‘Though I walk through the valley of the shadow of death I fear no evil for you are with me,’” wrote Diamond in his last post on Facebook. “Wherever I am, God is there too. I hope that I will return home soon.”
