For more than a century, many of the writings of Rabbi Abraham Isaac Kook remained in manuscript, hidden away from the public eye. The works of Rabbi Kook that were published in the interim had many passages removed from them. Only in the last quarter century have these original manuscript works been published. The Shemonah Kevatzim are the original notebooks that Rabbi David Cohen (the Nazir, d 1972) and Rabbi Zvi Yehuda (d. 1982) used to produce the standard editions of Rabbi Kook’s writings. In these notebooks, we see many passages that the editors left out of printed editions. And in Li-Nevukhei ha-Dor, we see a Rabbi Kook grappling with many of the religious issues of late nineteenth-century thought. These new works present to the reader a vista on a Rabbinic thinker struggling with many of the issues of fin de siècle modernity. In a recent book, Marc B. Shapiro presents choice quotes of these writings for an American Orthodox audience.
Marc Shapiro’s new book is Renewing the Old, Sanctifying the New: The Unique Vision of Rav Kook (Littman Library of Jewish Civilization, 2024). Marc B. Shapiro holds the Weinberg Chair in Judaic Studies at the University of Scranton, Pennsylvania. A graduate of Brandeis and Harvard universities, he is also the author of Between the Yeshiva World and Modern Orthodoxy: The Life and Works of Rabbi Jehiel Jacob Weinberg, 1884–1966 (1999); The Limits of Orthodox Theology: Maimonides’ Thirteen Principles Reappraised (2003); and Changing the Immutable: How Orthodox Judaism Rewrites Its History (2015), all published by the Littman Library. Shapiro produced many videos and podcasts about his work on Orthodox rabbis and their ideas; he is deeply appreciated by his audience.
In the book, Shapiro picks out many of Rabbi Kook’s major ideas that would be new to his audience including the challenges of modern science, treating the Bible in a non-literal way, the notion of natural morality as a counter to book law. his view of other religions, even acknowledging the possibility of alternate revelations, his idea of how a future Sanhedrin will update Jewish law, as well as his defense of Orthopraxy for those who cannot accept all the dogmas. Shapiro uses his vast knowledge of other Orthodox thinkers such as Chief Rabbi Yitzhak HaLevi Herzog (d. 1959) and Rabbi Yechiel Yaakov Weinberg (d.1966) to contextualizes Kook’s statements. The focus of the book is on topics of interest within English-speaking Orthodoxy (or of interest to Shapiro) and not on Kook’s use of Hegel and Schopenhauer, his views of history, or individualist views of creativity. At many points, Shapiro contrasts Rabbi Kook to the limits within American Orthodoxy, or has personal asides where he directly speaks to American Orthodoxy. These ideas of Rabbi Kook from 100 years ago were influential in the formation of Religious Zionism, which developed sharply different from American forms of Orthodoxy.

The ideas in the book have dozens of well-known interpretations in Religious Zionist thought, so the book would not be an innovation to them or their students. To take one example that I know well, Shapiro presents Kook’s ideas that the religions of the world are all part of the dew of the divine light and part of a Divine plan to uplift the world. Contemporary interfaith work, however, is already situated in a context where Rabbi Eliezer Melamed, Rabbi Oury Cherki, Rabbi Shlomo Amar, as well as my friend Rabbi Yakov Nagen, as well as many others, have been working for decades within Rabbi Kook’s framework to encounter other religions positively as part of a divine plan.
Another example: Shapiro cites that Rabbi Kook encouraged the study of Jewish thought, and only those trained in it should comment on Jewish thought. But Jewish thought is standard, in a Religious Zionist education consisting of at least the six thinkers of the Relgious Zionist canon Maimonides, Halevi, Maharal, Ramchal, Hayim of Volozhin, as well as mastery of Rabbi Kook’s writings. From there, one branches out to Midrash, Kabbalah, Hasidut, or even Franz Rosenzweig’s Star of Redemption. If one visits a Religious Zionist bookstore such as Dabri Shir, the majority of books are of Jewish thought. Shapiro’s book works as a foil to American Orthodoxy’s omission and is not meant to comprehend the way these statements of Rabbi Kook about Jewish thought are presented and lived by the culture of Jewish thought as understood by Religious Zionist Rabbis such as Rabbis Melamed, Avinar, Ariel, Bin Nun, Shagar and Cherlow, each in a unique manner.
The pleasure of the book, for me, is in the details and notes. Lots of citations to interesting quotes from books and a wealth of parallel ideas to Rabbi Kook. I had forgotten that Rabbi Kook had a responsa about Bahai and I learned that Rabbi Zini, the editor of Eliyahu Benamozegh (d.1900), ironically rejects the universalism of Benamozegh and of Rabbi Kook. I do wish that the book had engaged with the proximal context of Rabbi Kook, including universalist thinkers such as Rabbi Shmuel Alexanrov, a fellow Volozhin graduate with whom Kook corresponded about Buddhism, who had more radical views about other religions.
In many ways, this book continues Prof Marc Shapiro’s lifelong interest in showing the limits of Orthodox theology. Shapiro shows that Kook’s thought is broader than American Orthodox thought and that many of Kook ‘s ideas have parallels in other Orthodox Jewish thinkers whom Shapiro has written about, thereby creating or advocating a broader spectrum of ideas. I recommend reading some of his other articles here for a fuller discussion. For many American Modern Orthodox and Yeshivish readers, the book will be eye opening. They are already familiar with and appreciate Shapiro’s wide-ranging presentations of historical figures with Orthodoxy. They will welcome the book. The book is a fun and easy read for those interested in the topic, and is worthy of a long summer Shabbat afternoon to enjoy the book.
1. Why did you write the book?
Starting with the publication of Rav Kook’s Shemonah Kevatzim, we have been fortunate to see the release of a series of new books from Rav Kook, including Li-Nevukhei ha-Dor, his modern-day Guide of the Perplexed (though he didn’t give it that title himself). These writings, some of which were suppressed, cover a range of topics that I find particularly fascinating, and which have not been the focus of much writing on Rav Kook. In these works, Rav Kook expands upon ideas he mentions only briefly elsewhere, such as his views on sacrifices and the role of the religious masses.
I wrote this book because I am deeply intrigued by his unconventional views, but also because I thought others, particularly those within the Modern Orthodox community, would find them of great interest. Many had only known him as the prophet of religious Zionism. I believe the book has struck a chord because already several people have told me how surprised they are at the breadth of ideas Rav Kook explored. His openness to other religions is one example, but there are many more. Rav Kook brought originality into nearly everything he discussed, so it is no surprise that his newer books contain such fresh and thought-provoking insights.
2) You discuss evolution and the long evolutionary sense of a long history, including events long before the Bible, such as the Pleistocene age, but you mention that it is already accepted in Modern Orthodox High School textbooks. So, why do we need thinkers from 100 years ago to justify what is already accepted?
I don’t think it is a matter of needing thinkers from a century ago to justify anything. What I aimed to do is expose people to the perspectives of rabbinic leaders like Rav Kook and R. Herzog on these matters. That, in itself, has value, even if it doesn’t have any immediate practical implications. Furthermore, while it is true that Modern Orthodox high school history classes may accept that human civilization predates the traditional Jewish dating, I have seen very little reckoning with this from an Orthodox theological perspective.
How can one reconcile the biblical chronology of human development with the findings of modern scholarship, which show that humanity existed long before the timeline outlined in the Bible? At one time, the Modern Orthodox world devoted significant effort to reconciling an ancient universe with the book of Genesis. These efforts often focused on dinosaurs and fossils, and sought to show that creation could have occurred billions of years ago even though the Torah’s literal account places the world’s creation at less than 6,000 years ago.
Yet R. Herzog was not troubled by an ancient universe. His focus was on the next step: If humanity’s creation and expansion predate the Torah’s account, then the early chapters of the Torah must be understood in a non-literal fashion.
Rabbi Herzog hoped to write a book to define the boundaries of non-literal interpretation in the Torah. Unfortunately, he never had the chance to do so. Had he written this book, he would have needed to determine when the Torah shifts from “mythic history” to actual historical events. With his knowledge of history and science, he would have approached events like the Flood and the Tower of Babel differently than his predecessors in the traditional world. In his letters, which I published in the book, you can see how he struggled with the challenge of determining how far a non-literal interpretation could be extended, particularly as such an approach would break with the traditional views held by earlier commentators.
3) Why are you addressing American Centrist Orthodoxy with Rav Kook’s view when he is not the major influence on the community?
It is true that Rav Kook is not the dominant influence in the community, but he does hold a significant influence, and hopefully, that influence will continue to grow. As I mention in the book, I believe that many of Rav Kook’s insights which have nothing to do with Religious Zionism, on topics such as the appropriate curriculum, the place of halakhah, secular studies, literalism in Torah interpretation, heresy, halakhic change, natural morality, and other areas, will be of particular interest to the Modern Orthodox community. Yet the book is not only directed to them. Rav Kook’s ideas should be fascinating to all readers, regardless of their background or affiliation.
4) You seemingly paint Rav Kook as a modernist, yet we know he gave very anti-secular studies directives to his inner circle of students.
I would not describe Rav Kook as a modernist, especially given the associations that term carries. However, I would agree that he should also not be regarded as a traditionalist. It is true that Rav Kook spoke about the importance of secular studies, but we cannot ignore the fact that the yeshiva he founded did not include them in its curriculum. Moreover, most of his students did not engage with secular disciplines, and Rav Kook did not actively encourage them to do so. Even R. Zvi Yehudah, who had broad interests in his early life, ultimately embraced a “Torah-only” lifestyle.
A similar question arises when we consider Rav Kook’s stance on academic Jewish studies. He definitely valued these areas, as seen in a 1908 letter to Rabbi Isaac Jacob Reines, whose yeshiva included secular studies. In the letter, Rav Kook expressed his intention to establish a yeshiva that would include the study of “Hokhmat Yisrael” (Iggerot ha-Re’iyah, vol. 1, p. 148). In a letter to R. Isaac Halevy, author of Dorot ha-Rishonim, R. Kook reaffirms the necessity for new approaches in scholarship, arguing that the traditional approach will not be able to stand against the forces seeking to tear down tradition (Iggerot ha-Re’iyah, vol. 1, p. 188). Despite these sentiments, however, Hokhmat Yisrael was never incorporated into his yeshiva’s curriculum.
R. Ari Chwat has written two articles documenting Rav Kook’s positive attitude toward modern scholarship (Talelei Orot, vols. 13 and 14). Chwat explains that Rav Kook ultimately recognized that, at that moment in time, other priorities needed more emphasis, such as Jewish nationalism and the study of the Bible and “Emunah”. As a result, his dream of including an Orthodox Hokhmat Yisrael in the curriculum had to be postponed. I think a similar reasoning can be applied to secular studies. Rav Kook certainly appreciated them, but incorporating them into his yeshiva’s curriculum seemed too far a step for him. For those who were already inclined to these fields, he would be supportive, but not in the sense of making them part of the curriculum or encouraging students who had no such inclinations.
5) You mention that Rabbi Kook’s soul was aspiring to prophecy, Ruah Hakodesh and spirituality, and in his writings he preferred those over Talmud. Are you advocating those spiritual soul building forms of Torah?
I am not advocating for any forms of Torah that focus on spiritual soul-building experiences, but some are inclined in that direction. For example, the Nazir who was focused on the renewal of prophecy, perhaps seeing how Rav Kook sensed that he might have failed in this area could have been too much of a “downer” for those who wished to renew the prophetic spirit and saw Rav Kook as their guide in this matter. If there are Religious Zionist thinkers in Israel today who seriously imagine a resumption of prophecy, they intend this to come about through the study of Kabbalah. In this regard, they would be following the tradition of Rav Kook as carried on by the Nazir, rather than by Rav Zvi Yehudah, who was a more “this-worldly” figure.
I would simply note that Rav Kook himself had doubts about whether his own inner spiritual experiences were genuinely from God or simply creations of his imagination. In a passage that the Nazir—who himself was striving for prophecy—censored, Rav Kook wrote: “I listen and I hear from the depths of my soul, from among the feelings of my heart, the voice of God calling. I experience a great trembling; have I so descended to become a false prophet, to say God sent me when the word of God has not been revealed to me.” I find Rav Kook’s honesty in this passage very refreshing, as it reveals his own self-doubts.
6) Where is Rabbi Hertzog the same or different than Rabbi Abraham Isaac Kook?
R. Isaac Herzog, who succeeded Rav Kook as the Ashkenazic Chief Rabbi of Eretz Yisrael, was quite different from Rav Kook. Unlike Rav Kook, he had a deep secular education, was fluent in many languages—both ancient and modern—and was fully at home in academic Jewish studies. His works primarily focused on talmudic studies and Jewish law, mostly from a traditional perspective, but he also produced academic works. Unlike Rav Kook, Kabbalah was not a central feature of R. Herzog’s life.
Rav Kook, as we know, was very much a mystic whose thoughts and his thoughts spanned the spectrum of ideas. While he also wrote on Talmud and halakhah, he did not view this as his primary contribution. Rav Kook had no formal academic training and did not produce works that could be categorized as academic. When faced with a conflict between science and Torah, Rav Kook looked at scientific conclusions—based on his understanding—and sought to harmonize them with Torah. R. Herzog, on the other hand, was deeply engaged with understanding how historians and scientists arrived at their conclusions. He carefully examined historical and scientific texts and reached out to leading non-Jewish scholars to hear their perspectives.
7) You discuss the Bible as not literal. Can you explain?
I try to place Rav Kook’s perspective within a larger context by examining how other figures have addressed the apparent conflicts between Torah and science or history. Given that Rav Kook’s approach may seem unconventional to many, I felt it was important to show how others have approached these issues, including medieval Maimonideans. Years ago, I discovered a number of letters from R. Herzog on this very topic, and the book provided an opportunity to explore how he addressed the issue.
R. Herzog’s primary concern was the biblical chronology. Modern science and history suggest that humanity has existed for a much longer period than the biblical account would indicate. R. Herzog’s first step was to determine whether there is any doubt regarding the modern scientific and historical conclusions. If there are any doubts, the biblical narrative can be understood literally. However, if there is no doubt about the scientific conclusions regarding the timeline of human history, he believed there is no choice but to interpret the Torah’s account in a non-literal way.
8) You seem to advocating both Orthopraxy and Social Orthodoxy. You seem to use Rabbi Kook to advocate for Modern Orthodox who are lax in mizvot and non-believers because they send their kids to day schools and give to Jewish causes.
I am not advocating for Orthopraxy or Social Orthodoxy. What I highlight are important statements from Rav Kook in which he demonstrated an openness both to non-observant Jews and to observant Jews who did not subscribe to traditional Orthodox dogmas. While Rav Kook did not support either of these approaches, he saw ways in which these individuals could still be included within the community. What we today call Orthopraxy fits squarely within the framework Rav Kook mentions, namely, that those with heretical beliefs, as long as those beliefs do not have an impact in the real world, should not be regarded as heretics.
When it comes to non-observant Jews, an important distinction should be made. Rav Kook did not embrace all Jews simply because they were Jewish, which contrasts with the approach commonly found in today’s kiruv organizations. When Rabbi Jacob David Wilovsky challenged Rav Kook on his relationships with the irreligious—after all, there are the explicit halakhot about how to treat them—Rav Kook explained that there is a difference between those who are irreligious yet possess what he referred to as the segulah, and those who lack it. In a formulation that distances him from the Chabad approach, Rav Kook wrote, “I do not befriend all transgressors, but only those whom I feel have a great power of segulah within them” (Iggerot, vol. 2, p. 188).
Today, especially after October 7, we can clearly see that there are many irreligious Jews who have the segulah that Rav Kook spoke about. They take pride in their Jewish identity and are connected to the Jewish people and the State of Israel in various ways. These are the very people Rav Kook was referring to. We need not limit his words to the early pioneers, who were driven by an ethical vision and were willing to sacrifice so much for the Jewish people and the Land of Israel. Even more ordinary, “run-of-the-mill” Jews—such as those in bourgeois America—can be included in Rav Kook’s category of those who possess the segulah.
9) At the very end of your book, you point out that Rav Kook was against giving women the right to vote. But we have given women the right to vote. Therefore, we cannot accept everything he said. How do you determine what to take?
With every great thinker one will find teachings that are enduring and others that are transitory. When it comes to determining which parts of the Torah should be interpreted literally and which should not, Rav Kook acknowledges that there are no clear-cut markers, and that the intuitive sense of the Jewish people will ultimately provide the answer. I believe we must adopt the same approach when evaluating Rav Kook’s own teachings.
To return to the example you mentioned, while communal sentiments can shift, it is hard to imagine ever going back to an era in which the denial of women’s suffrage, as advocated by Rav Kook, is considered “the Jewish” approach. In this regard, as in many others, it is often the people’s intuitive sense that leads the way, and later rabbinic decisions simply give their imprimatur to the collective feelings of the community.
10) You write that you heard a shiur by a Centrist rabbi on the topic of “lo tehonem” (not to give a gentile a present or a compliment). You say that we have to let it drop. How do we determine what to drop since there are lots of things that are not modern values?
The issue here is not that we have to “let it drop.” It had already been dropped, and halakhic justification had been offered in justification of this. What we are facing today is an attempt to revive it, so to speak. Normally, when reviving a forgotten practice, the main concern is whether the community is prepared to adopt a greater stringency. However, in this case, the “stringency” challenges our ability to live a normal life within a modern democratic society. R. Jehiel Jacob Weinberg already wrote about the need to declare this type of halakhah no longer relevant. In a letter to Samuel Atlas, after mentioning some discriminatory laws, R. Weinberg wrote: “We must solemnly and formally declare that in our day, this does not apply. Meiri wrote this, but the teachers and rabbis whisper to their students that all of this was written because of the censor.”
11) Rav Kook speaks of the evolution of animals to higher states. What does that mean?
I see myself in the rationalist camp, and the idea that animals will evolve to a higher state of consciousness is something that is difficult for anyone with a rationalist perspective to accept. While Rav Kook certainly draws on Maimonides’ Guide for the Perplexed, we often see that his ideas diverge from those of Maimonides in significant ways.
However, even if one cannot accept Rav Kook’s perspective on this issue, we must understand it as part of his broader vision of the world evolving toward greater perfection. It is also worth noting that his suggestion that animals will advance to a higher level helps explain why he that believes consuming animals will eventually become impossible. We kill animals to eat but if they advance to a higher level then they will no longer be “animals” as we now know them. Similarly, in such a world, animal sacrifices would no longer be applicable. The animals would no longer be the same creatures that were originally commanded to be sacrificed, so the Torah’s commandments regarding sacrifices would no longer apply.
12) You seem to write about two forms of natural morality. Can you explain?
Rav Kook speaks of trusting the natural instincts of the religious masses, and of natural morality as an inner sense that should remain uncorrupted. These are simply two expressions of the same phenomenon. Rav Kook believes that natural morality reflects divine values because the soul itself is implanted by the divine. As such, its intuitive feelings arise from this divine source and should be seen as pure, rather than as sentiments to be dismissed.
Rav Kook even describes these inherent natural feelings as characterizing the Patriarchs, who lived in a pre-Torah era and were thus forced to strive for perfection without the guidance of the written Torah.
Rav Kook’s perspective on natural morality, especially as it pertains to the masses, is particularly refreshing. In yeshivot we are taught that in matters of Torah, all valuable knowledge flows from the rabbis to the people; it is a one-way street. Rav Kook, however, turns this into a two-way street, where the masses also have something significant to offer to Torah scholars. While in the Haredi world, the idea of Daas Torah is often contrasted with Daas Baalei Batim, Rav Kook sees the religious masses as preserving Torah truths that sometimes elude the Torah scholars. This leads to a more inclusive vision of Judaism, in which a broader segment of the population can contribute in meaningful ways.
13) How would you answer those who critique your position on studying Jewish thought by saying that only halakhic authorities should decide such issues?
Rav Kook identified a significant problem: There are individuals who possess great halakhic knowledge but lack a deep understanding of Jewish thought. As a result, these individuals tend to adopt a “stringent” stance on matters of Jewish belief. They assume that everything they believe is a principle of the Torah, and if anyone expresses a differing opinion, they regard that person as a heretic. Therefore, even if one argues that halakhic authorities should be the ones to decide such matters, it is crucial that they also be well-versed in Jewish thought—a combination that has historically been quite rare.
In general, however, I do not accept the premise that halakhic authorities can “poskin” on matters of Jewish thought the way they decide questions of kashrut or Shabbat. I also do not believe that a view “accepted” years ago can now be ruled out of bounds. While some more recent Orthodox authorities adopt this position, Maimonides rejected such a conception, and I believe it lacks logical sense. I discuss this issue in my article, “Is There a ‘Pesak’ for Jewish Thought?” available here.
