“‘I Do Not Understand a Single Word of What I Wrote in My Book’: Rav Kook, Saul Lieberman, and a Literary Mishlo’aḥ Manot Exchange”
By Aviad Hacohen
The festival of Purim, with its customs and traditions, has long constituted a broad and fertile field for a vast body of research, folklore, and ritual practice associated with the “Jewish carnival.” The drinking of wine, the wearing of costumes (which have no foundation in early sources and, in the view of many scholars, were influenced by the Venetian carnival), the use of noisemakers for the purpose of “blotting out Amalek,” and the practice of mishlo’aḥ manot have all added layers of joy and exuberance to the festival, at times reaching the point of genuine revelry and even debauchery, and giving rise in certain historical contexts to acts of mockery, hostility, and ritualized violence that have attracted sustained scholarly attention.
Two of the day’s commandments explicitly mentioned in the Scroll of Esther are “the sending of portions, each man to his fellow, and gifts to the poor.” Whereas the giving of charity to the poor assumed a more or less uniform form, the “sending of portions” became a platform for no small measure of creativity. Already in the Talmud, it is related that the amora Rabbi Yehudah Nesi’ah (the grandson of the tanna Rabbi Yehudah ha-Nasi) sent his colleague Rabbi Hoshaya an especially splendid mishlo’aḥ manot, consisting of choice veal and an entire jug of wine.
To this day, one may observe throughout Israel, particularly in Haredi concentrations, especially elaborate mishlo’aḥ manot, laden with assorted and varied food items, accompanied by ornate trays and crackling cellophane wrapping. Alongside the traditional commandment, in recent decades in particular, a rich vein of humor has developed portraying the familiar bottle of wine and dry cake as completing an entire “circuit” within the community, passed from hand to hand as a repeatedly re-gifted mishlo’aḥ manot, until it ultimately returns to its original sender. In light of this reality, many today prefer to refrain from preparing an individualized mishlo’aḥ manot, much of whose content is ultimately discarded after the festival, and instead opt for a standardized communal mishlo’aḥ manot distributed collectively to members of the community. The funds thereby saved, rather than being expended on redundant food items and decorative packaging, are redirected toward a range of charitable and benevolent causes.
These contemporary developments, however, merely underscore a broader point: the commandment of mishlo’aḥ manot has long been characterized by considerable elasticity in both form and practice. Indeed, halakhic literature contains an extensive discussion concerning the question of how one may properly discharge one’s obligation with respect to this commandment. One of the more intriguing debates in this context concerns whether one may fulfill the obligation of mishlo’aḥ manot not through edible “portions,” but rather through “words of Torah,” by sending a book, each person to his fellow. There is, in fact, no small body of testimony regarding sages of Israel, such as Rabbi Shlomo Alkabetz and Rabbi Yehudah Aszod, who sent, as “mishlo’aḥ manot, each person to his fellow,” their own Torah novellae or scholarly compositions.
This halakhic discussion is not merely theoretical. In the course of my research on Rabbi Professor Saul Lieberman (1898-1982), I encountered a striking modern resonance of precisely this idea, one that illuminates the enduring cultural and intellectual valences of mishlo’aḥ manot beyond its strictly culinary expression. Although he arrived in Jerusalem at a relatively late age, being about twenty-nine, Lieberman quickly became integrated into Jerusalem’s intellectual milieu. As a member of the first cohort of students at the Institute of Jewish Studies at the Hebrew University on Mount Scopus (which had been founded only a few years earlier), he listened with great thirst to the teachings of the leading scholars in Jewish Studies and in classical studies, among them his teacher and master Professor Yaakov Naḥum Epstein, Professor Shmuel Klein, and Professor Moshe Schwabe, one of the foremost scholars of classical culture.
Alongside his academic studies, he soon acquired a reputation as an exceptionally great Torah scholar, for whom no secret of rabbinic literature was lo anīs lei, that is, nothing lay beyond him and nothing escaped his grasp. For many hours he would labor diligently over his learning, memorizing Mishnayot and Talmud – Bavli and Yerushalmi – by heart, and within a few years he produced several exemplary works, such as On the Yerushalmi (1929) and The Talmud of Caesarea (1931), which to this day are regarded as foundational texts in the scholarly study of rabbinic literature.
Upon the completion of his studies, Lieberman began teaching in the Talmud preparatory program of the Institute of Jewish Studies, while simultaneously devoting himself to the composition of The Yerushalmi According to Its Plain Meaning (Ha-Yerushalmi Ke-Peshuto) (1935), intended as a comprehensive commentary on the entire Jerusalem Talmud.
On the personal plane, life did not treat him kindly. A short time after his arrival in the Land of Israel, he was bereaved of his youthful wife, Rachel née Rabinowitz, daughter of the rabbi of Pinsk and a descendant of a distinguished rabbinic dynasty. Some time later, he married his second wife, Judith, likewise of illustrious lineage in her own right, the daughter of Rabbi Meir Berlin (later, Bar-Ilan), leader of the Mizrachi movement, and granddaughter of the Netziv of Volozhin. She accompanied him faithfully until the end of her days. The couple did not merit children, and Lieberman immersed himself in his learning.
In the course of these years he became integrated into the “circle of Jerusalem sages,” forming close friendships with many of its members, among them the writer S.Y. Agnon; the scholar Gershom Scholem; the bookseller and proprietor of the Darom publishing house, Michl Rabinowitz; the educator Eliezer Meir Lifshitz; and the merchant and cultural patron Shlomo Zalman Schocken, who in those days founded the Institute for the Study of Medieval Hebrew Poetry.
One figure with whom Lieberman developed an especially close relationship was the Chief Rabbi of the Land of Israel, Rav Abraham Isaac Hacohen Kook. Rav Kook was revered by many members of the Yishuv, among them Berl Katznelson and S.Y. Agnon, and even by self-described “heretics” such as Gershom Scholem and Justice Haim Cohn, who in his youth studied Torah for a year in Rav Kook’s yeshiva together with his cousin, the journalist Azriel Carlebach.
Despite the age gap between them (Rav Kook was twenty-seven years older than Lieberman), the two formed an exceptionally close bond, so much so that Rav Kook, despite being heavily burdened with unceasing rabbinic and public responsibilities, agreed to reserve a fixed hour each day to study in ḥavruta with Saul Lieberman the Tur on Ḥoshen Mishpat, together with Rabbi Joseph Karo’s Beit Yosef.
Like many others, Lieberman, who would later come to be recognized as the greatest scholar of the Talmud in the twentieth century, continued to revere Rav Kook until his final days, and on more than one occasion cited his teachings. Thus, for example, in a letter dated 29 December 1981 to his younger colleague, Professor Ephraim E. Urbach, Lieberman opens with the following sentence:
“You wrote to me that ‘you were ill,’ and I was reminded of the words of Rav Kook, of blessed memory, who said: I prefer to hear ‘I was ill’ rather than ‘I was wealthy’….”
According to a widespread Jerusalem legend, Lieberman and Rav Kook stipulated that they would not cancel their daily study session for any amount of money in the world, and that should either of them violate this condition, he would be required to pay a substantial “fine” to his counterpart. For Lieberman, whose daily schedule was relatively free, fulfilling this condition was easy. For Rav Kook, who in those days was already in poor health and burdened to exhaustion with the needs of the public, fulfilling it was far more difficult, almost impossible.
And indeed, on one such day Rav Kook was compelled to cancel the study session after being invited to serve as sandek at the circumcision of the child of one of Jerusalem’s notable residents. Lieberman, of course, did not forget the matter, and resolved to vindicate the affront at an appropriate time.
In the late afternoon of the “Purim of the unwalled cities,” the fourteenth of Adar 5695 (1935), when Rav Kook was preoccupied with the final preparations for the reading of the Megillah that night in Jerusalem and with organizing the charity funds of matanot la-evyonim to be distributed the following day (for in Jerusalem Purim is celebrated on the fifteenth of Adar), Lieberman appeared unexpectedly at his home and demanded payment of the “fine”: one hour of study in exchange for the hour that had been cancelled several months earlier.
Rav Kook, who recognized the justice of the claim, had little choice. He set aside all his affairs, and the two sat and studied together for a full hour.
Thus far the story, which circulated in Jerusalem for many years. I confess that for a long time I regarded it as no more than a charming “urban legend,” one of those anecdotes that naturally crystallize around towering figures, depicting them not only in their greatness in Torah but also, in the manner of the early sages, as men of wit who knew how to tease one another with affectionate irony.
The story took root, and its echoes may be found in various books as well, albeit in an imprecise form, such as in the writings of Rabbi Moshe Tzvi Neria on Rav Kook. The source material for Rabbi Neria’s account is preserved in his personal archive, now housed in the National Library of Israel, and includes a remarkable series of recollections that Lieberman shared with him in the summer of 1979.
To my astonishment, however, two concrete pieces of evidence that have come to light in recent years in the course of my research on Lieberman do more than merely gesture toward the plausibility of the account. They substantially corroborate it. The first emerged many years ago in the main library of Yeshivat Mercaz HaRav – a library endowed in the name of Markus Cohn, the father of Arthur Cohn, the eminent Hollywood producer who passed away only recently.
On the first volume of The Yerushalmi According to Its Plain Meaning (Ha-Yerushalmi Ke-Peshuto) (also the last, for Lieberman ultimately decided to abandon his projected commentary on the Yerushalmi and to turn instead to the Tosefta, on which he produced his monumental Tosefta Ke-Peshutah), there appears a dedication that Lieberman wrote to Rav Kook, composed, as was customary, in rabbinic idiom and in abbreviations:

“In honor of our master, the rabbi of the Land of Israel and of all the Diaspora, the Gaon Rav A.I.H. Kook, may he live a long and good life, with feelings of admiration and respect, from the author.”
Attention should be paid to the date on which these words were written. The work was published in 5695 (1935). Lieberman signed his introduction at the beginning of that year, on Sunday, 7 Tishrei 5695, between Rosh Ha-Shanah and Yom Kippur, corresponding to 16 September 1934.

Obviously, the printing also took a certain period, probably a few months.
Greater precision can be established regarding the date of publication. A notice announcing the appearance of Ha-Yerushalmi Ke-Peshuto was printed on the front page of Kol Yisrael, the organ of Agudat Israel in Jerusalem (edited by Rabbi Moshe Blau), on 8 Kislev 5695 (15 November 1934). The advertisement’s conspicuous placement on the newspaper’s front page indicates that the volume had only recently emerged from the press and was then being introduced to the reading public. It therefore provides a reliable terminus post quem for any presentation of the work to Rav Kook.

Lieberman therefore could not have presented the book to Rav Kook before that date. The possible window is accordingly narrow: from mid-November 1934 until the onset of Rav Kook’s final illness around Passover 5695 (April 1935). It is thus plausible that Lieberman brought the newly printed volume to him on the eve of Purim of that year, perhaps as mishlo’aḥ manot, or shortly beforehand, and that Rav Kook, in return, presented him with a copy of Rosh Milin bearing the distinctive Purim dedication.
Rav Kook passed away in Elul of that year. Approximately six months earlier, around Passover, he had contracted his final illness and was already confined to his deathbed in a state of severe suffering. Consequently, even had Lieberman wished to do so, he could only have presented him with the work during the brief period at the beginning of that year, from the book’s publication until Passover.
The second surprise came to my attention several years ago, when a friend sent me a photograph of the title page of Rav Kook’s small and enigmatic kabbalistic work, a copy of which was in his possession.
The work, Rosh Milin, on the Hebrew letters, was written in 1917, during Rav Kook’s exile in London in the course of the First World War. Thus did Rav Kook write, in the affectionate dedication he inscribed to his young colleague and ḥavruta:
“A gift of true love to the chosen of my heart, Rabbi Saul Lieberman, may he live a long and good life. Abraham Isaac, the small [i.e., the humble one]. Purim of the unwalled cities, 5695 [1935].”
Anyone familiar with the dedications and expressions of esteem that Rav Kook addressed to various individuals, including leading Torah scholars, will recognize that the phrase he wrote to Lieberman, “true love to the chosen of my heart,” is striking in its exceptional character.
Incidentally, Gershom Scholem later related that, despite his expertise in Kabbalah, he did not succeed in understanding Rosh Milin. He further added – “on the testimony of trustworthy informants,” by which he meant his close friend Saul Lieberman (and he even recorded the remark in his personal copy of the book, now preserved in the National Library of Israel) – that Rav Kook himself told Lieberman:

“Regarding this book, the author [i.e., Rav Kook] said to my friend Saul Lieberman, shortly before his death – when he presented him with a copy as a gift – that he now does not understand a single word of what he wrote in it, even though at the time of writing he fully grasped the meaning and intent of the matters.”
Although Lieberman was as far removed from engagement with Kabbalah as east is from west, he once gave memorable expression to this distance when asked to introduce a lecture by his close friend Gershom Scholem. Lieberman opened his remarks with an immortal quip about Scholem’s field of research, Kabbalah and Jewish mysticism: “Nonsense is nonsense, but the study of nonsense may be a science….” Nevertheless, Rav Kook chose, of all his writings, to present Lieberman with this particular book as a gift, perhaps so that it might serve as a kind of “amulet,” or perhaps as an act of Purim mischief on the part of the aged rabbi; we cannot know.
The unusual date recorded in the dedication, “Purim of the unwalled cities, 5695,” suggests that the booklet was presented to Lieberman on that very occasion, when, according to the account, he chose to collect the aged Rav Kook’s “debt” during their joint study session, perhaps their last, on Purim of that year.
It is entirely plausible that on that occasion Lieberman brought Rav Kook his newly published work, The Yerushalmi According to Its Plain Meaning, and that in return Rav Kook presented him with mishlo’aḥ manot in the form of his small and enigmatic book.
Thus the Jerusalem legend seems to acquire flesh and sinew, and what once appeared to be no more than a charming anecdote may in fact preserve a genuine historical memory: a literary mishlo’aḥ manot exchanged between two towering figures, in which Torah, affection, and Purim playfulness were delicately intertwined.
Appendix A: Rabbi Moshe Tzvi Neria’s Archival Notes on Saul Lieberman’s Recollections of Rav Kook (Summer 1979)
The following translation is based on Rabbi Moshe Tzvi Neria’s handwritten notes preserved in his personal archive, currently housed in the National Library of Israel (Jerusalem). The notes record a conversation held during Summer 1979 in which Rabbi Professor Saul Lieberman recounted a series of episodes relating to Rav Abraham Isaac Hacohen Kook and the influence that Rav Kook exerted upon him. The material corresponds in its essentials to passages later published by Rabbi Neria, but the archival version preserves additional details and a more expansive formulation of Lieberman’s testimony.
Rabbi Neria was accustomed to preserving every scrap of paper containing substantive content that passed through his hands. Alongside newspaper clippings in which several articles about Lieberman appeared, Rabbi Neria preserved the remarks he heard directly from him in the summer of 5739 (1979). According to his account, Lieberman requested that he telephone him in the early morning (“from eight o’clock onward I disconnect the telephone, lock the door, and engage in my Talmudic study without interruptions”), and he did so.
Lieberman told Rabbi Neria that his first visit to Rav Abraham Isaac Hacohen Kook took place on the night of Shavuot:
“I heard that he was teaching Sefer ha-Mitzvot [i.e., Maimonides’ Book of the Commandments]. I came and sat down by the table. In the course of the study I made a remark, and the Rav answered me briefly. Later I made another remark, and again I received a brief reply. When I remarked upon his words a third time, the Rav turned to me and said: ‘Come in to me tomorrow.’ When I came after the festival, the Rav received me with great warmth, asked about my family, and it emerged that he knew several rabbis among my relatives. After a Torah conversation, he asked that I come to him frequently, and thus I did. On the way to the Rav’s visit to the Gerrer Rebbe (to R. Neḥemyah’le [??]), the Rav delayed at my apartment and became engrossed in a halakhic give-and-take concerning a matter I was then studying. I would come and present my novellae before him, ask about what had been difficult for me, and the like. His warm attitude toward me greatly encouraged me. He had a mystical influence upon me, even though I am far from mysticism. I had ‘tests,’ and he influenced me to remain in the study of Torah.”
Lieberman recounted to Rabbi Neria one such “test.” According to his account, a dispute arose between Rabbi Fishman [i.e., R. Yehudah Leib Maimon] and Bank Mizraḥi. The parties decided to submit to arbitration before attorney Mordechai Eliash. Lieberman represented Rabbi Fishman, whereas the bank was represented by attorney Mordechai Levanon. Rav Kook summoned Lieberman and instructed him to cease representing him in the arbitration:
“You have acquired a reputation for involving yourself in arbitration, and that will draw you away from your learning.”
Rabbi Neria further adds and cites in Lieberman’s name words of admiration and reverence for Rav Kook:
“Not only did his greatness in Torah exert influence – and he knew the entirety of Torah – but his entire personality. Matters of the people of Israel and the Land of Israel were not for him merely pathetic rhetoric; rather, they overflowed from his depths, from his hidden world, and there was something mystical in it. This was a figure overflowing with light, and his light would penetrate in its own ways… The Rav was an artist. Not merely a man with poetic sensibility, but truly an artist. In his writing there is a sacred grandeur. His words are like the tones of the shofar’s sound. The ease of his writing is astonishing, yet it is the result of abundant knowledge. They once told of a certain wealthy man who marveled at the request of a great painter to receive an enormous sum of money for a sketch he drew within ten minutes. ‘Not so,’ replied the painter; ‘I labored sixty years in order to attain an ability to draw in such a manner.’”
According to Rabbi Neria, Lieberman told him that he was occupied with printing Ḥasdei David, the commentary of R. David Pardo on the Tosefta, and that through printing his own work on Seder Ṭohorot he repaid his debt…
In this context Lieberman added:
“I also must repay a debt to the Rav [i.e., Kook]. He greatly encouraged me in the study of the Jerusalem Talmud. Several times I presented before him my Torah insights in elucidating difficult passages in the Jerusalem Talmud, and he took great pleasure in them.”
In response to Rabbi Neria’s question, “Was the Rav [i.e., Kook] as proficient in the Jerusalem Talmud as in the Babylonian?” Lieberman replied:
“The Rav was proficient in everything: Babylonian and Jerusalem Talmud, Tosefta and Midrashim, Rishonim and decisors. The Rav was the only one who encompassed the entirety of Torah, and this influenced his encompassing vision. The Rav’s vast scope contributed greatly to the richness of his personality. This was also the greatness of the Netziv, who knew the whole of Torah. I am deeply impressed by the Netziv. So too was R. Meir Simḥah [of Dvinsk, author of Or Sameaḥ].”
In this connection, Rabbi Neria cited words written by Rav Kook:
“The originality of the ‘ever-strengthening spring’ and the ‘river that does not cease’ (Avot, beginning of ch. 6) is the primary aspiration of one who engages in Torah for its own sake, which comes from divine cleaving. The inner spiritual bond with that which is all, the source of all, and beyond all. The desire filled with purity, which steadily intensifies to absorb the distilled essence of the supernal sap within the supernal realms—these are they who always seek the ennobled renewal in its vigorous force” (Iggerot ha-Ra’ayah, vol. 3, p. 4).
(“The Rav’s [i.e., Kook’s] vast scope contributed greatly to the richness of his personality. His opponents fought against him because they recognized his power, because they knew his greatness.”) According to Rabbi Neria, Lieberman described the Rav’s words as expressing a “sacred grandeur.”
Rabbi Neria further relates, in Lieberman’s name, that in the summer of 5690 (1930) Rabbi Moshe Ostrovsky came to the apartment where Rav Kook was staying in Kiryat Moshe in order to pressure him to agree to the compromise proposal then being circulated, according to which the people of Israel would relinquish part of their rights in the Land of Israel, including at the Western Wall. Lieberman was present. The visitor wished that he leave the room so that he could speak with Rav Kook privately; however, Rav Kook detained Lieberman and instructed him to continue sitting there.
Years later, after the passing of Rav Kook, Rabbi Neria heard at a memorial gathering held in the Jewish Agency building that Rav Kook had told Rabbi Ostrovsky:
“The people of Israel has not empowered any person to relinquish the Western Wall. If we relinquish it, the Holy One, blessed be He, will not wish to restore it to us.”
Rabbi Neria testifies that while he lived in Jerusalem in the 1930s, Rabbi Professor Saul Lieberman would customarily pray on the High Holy Days together with the students of Yeshivat Merkaz ha-Rav, who had established their place of prayer at Yeshivat Etz Ḥayyim in the Maḥaneh Yehudah neighborhood.
Among other matters, Rabbi Neria wrote down what he heard from Lieberman regarding his shared study with Rav Kook, and according to what is stated there. The accounts found in Rabbi Neria’s handwritten notes correspond in their essentials to what he later presented in his book.
Alongside them, I found in this archive and in additional archives details concerning Lieberman’s involvement, at the request of his friend (and relative) Rachel Yanait Ben-Zvi, wife of the late President Yitzḥak Ben-Zvi, in the establishment of a yeshivat hesder in Peki’in. Within this framework he approached Rabbi M. Z. Neria and asked him to assist in realizing the idea in practice. Concerning this episode I intend to write, God willing, elsewhere.
Notes
I would like to express my sincere gratitude to my friend and colleague Mr. Menachem Butler, who devoted considerable effort to translating and editing this article into English. I am also grateful for his valuable contributions, including bibliographical references and precise citations.