Marc Shapiro’s The Limits of Orthodox Theology is a book about a coalition document that does not know it is a coalition document. Shapiro’s argument runs at the level of doctrine and historical scholarship. The thirteen propositions Maimonides put forward in his Commentary on the Mishnah have been treated for centuries as the catechism of Jewish belief. Shapiro shows that across those centuries, Orthodox authorities of impeccable standing have held positions contradicting nearly every one of the propositions. The book is encyclopedic on this point. It piles citation on citation until the reader cannot maintain the position that the Principles function as a binding catechism whose contents commanded substantive assent.
What Shapiro does not do, because the book operates within the conventions of historical-theological scholarship, is name the structure that explains the data. The structure is coalitional. The Pinsof, Sears, and Haselton strange bedfellows account of political belief systems argues that bundles of beliefs cohere not because their contents share a logical structure but because they signal coalition membership. American conservatism’s combination of opposition to abortion, support for gun rights, skepticism of climate science, and low-tax preferences has no internal logic that connects the positions. The bundle holds because it marks who you sit with. Pinsof’s larger Alliance Theory says the same thing about belief generally. Beliefs are coalition technology, evolved to coordinate group membership and not to track truth.
Read Shapiro through this frame and the puzzle the book documents resolves cleanly. The Principles are a bundle calibrated for a coalition, not a system derived from theological first principles. Their survival across centuries tracks coalition need, not philosophical adequacy. Their substantive contestation among the very authorities who recited them in rhetoric is what Alliance Theory predicts of any successful coalition document. The bundle holds because it is a bundle, not because each item passes muster on its own.
Look at what Maimonides was doing in twelfth-century Egypt. He was a rabbinic Jew writing a commentary on the Mishnah for a popular audience. His coalition pressures came from four directions. The Karaites disputed the Oral Torah, denied resurrection, and rejected rabbinic interpretive authority. The Christians made a competing messianic claim and disputed the eternity of the Mosaic law. The Muslims accepted Moses as a prophet but ranked him below Muhammad and disputed the Pentateuch’s textual integrity. The philosophers, internal to the Jewish camp, held positions that subordinated revelation to Aristotelian metaphysics in ways that destabilized providence and reward.
Now look at the Principles in this light. The first two assert God’s existence and unity, foundation that no rival camp seriously disputes. The third, divine incorporeality, addresses the philosophers and educates the masses against anthropomorphic Bible reading. The fourth, creation, addresses the Aristotelians who held matter eternal. The fifth, that God alone is to be worshipped, addresses the cult of saints and intermediary worship. The sixth and seventh address prophecy and the unique status of Moses, marking the boundary against Christianity and Islam. The eighth, the Mosaic authorship and integrity of the Pentateuch, marks the boundary against Christian and Islamic claims of textual corruption. The ninth, the eternity of the Torah, marks the boundary against Christianity’s supersession claim and Islam’s abrogation claim. The tenth and eleventh, providence and reward and punishment, address the Aristotelian philosophers within. The twelfth, the future Messiah, marks the boundary against Christianity’s already-arrived Messiah. The thirteenth, resurrection, marks the boundary against Karaites and against the philosophers who held the soul’s immortality but not bodily resurrection.
The bundle is not a system. It is a list of boundary markers each of which separates rabbinic Judaism from a particular rival camp. This is what strange bedfellows predicts. The contents of the bundle are coalitionally selected, not logically derived. There is no first principle from which the others follow.
This explains the first puzzle Shapiro raises. Saadiah Gaon and Hananel ben Hushiel had earlier offered lists of principles, and neither list survived. Maimonides’ list survived. Why his and not theirs? Alliance Theory’s answer: Maimonides’ list was better calibrated for the coalition pressures of his moment and the moments that followed. Saadiah’s list was tuned for tenth-century Babylonian Karaite-rabbinic disputes that lost their salience. Maimonides’ list was tuned for the broader Mediterranean rivalry with Christianity and Islam that intensified through the medieval period. The list that survives is the one whose boundary markers continue to mark live boundaries.
The second puzzle: why do the Principles disappear for two centuries after Maimonides and then come roaring back in fifteenth-century Spain? Shapiro flags Kellner’s observation that the Principles received little extended treatment between Maimonides’ death in 1204 and the early fifteenth century. Then Crescas, Albo, Abarbanel, Duran, and others are debating them at length. What changed?
Christian polemic changed. The fifteenth century is when Spanish Christianity escalates its conversionary pressure on Spanish Jews. The Disputation of Tortosa runs from 1413 to 1414. The wave of forced conversions begins. Christianity demands of Judaism what it demands of itself, a creed, a propositional summary that can be examined, defended, and disputed in the Christian frame. Tacit transmission through halakhic practice does not satisfy a Christian interlocutor who wants to know what you believe. The Principles return because the coalition is under external pressure that requires explicit articulation.
Crescas, Albo, and the others argue about whether Maimonides’ list is correctly formulated, whether the items are properly called “principles” or just “true beliefs,” whether some should be added or subtracted. They do not argue that there should be no list. The catechism becomes the form of Jewish self-defense, even when the contents of the catechism are negotiable. Strange bedfellows again. The bundle holds even as its members shift, because the existence of a bundle is what serves the coalition need.
Yigdal and Ani Maamin perform the next round of coalition work. The Yigdal hymn compresses the Principles into a recitable Hebrew poem set to music. The Ani Maamin formula compresses them into a credal recitation. Both serve a function the prose of Maimonides’ commentary cannot serve. They make the bundle transmissible to the masses and immune to philosophical examination. A child sings Yigdal without parsing the metaphysics of incorporeality. A worshipper recites Ani Maamin without working out what the Mosaic prophecy claim entails. The compression is what Pinsof predicts. Coalition technology gets simplified to maximize transmission and signal value, even at the cost of substantive content. Kellner’s complaint that the popular forms vulgarize Maimonides is correct as scholarship and beside the point as sociology. Vulgarization is what makes the bundle work as coalition technology.
The next pressure wave hits in the nineteenth century. Reform Judaism formulates its own creeds that explicitly reject several of the Principles. The 1885 Pittsburgh Platform rejects bodily resurrection, the personal Messiah, the obligatory character of much Mosaic law, and the national chosen-ness of Israel as a category Reform wishes to retain. These rejections turn the Principles into the natural boundary marker for Orthodoxy. To recite Yigdal becomes a coalition signal that distinguishes Orthodox from Reform. The strange bedfellows logic intensifies. Within the Orthodox camp now sit kabbalists who hold positions that strain Maimonides’ incorporeality claim, Hasidim whose theology of God’s omnipresence reads as panentheist by Maimonidean standards, Mitnagdim who reject Hasidic charisma, German neo-Orthodox who accept Western secular education, Hungarian ultra-Orthodox who reject it, Sephardim with different liturgical and theological inflections. They are all rhetorically united by acceptance of the same thirteen propositions whose substantive meaning none of them shares with the others. The bundle holds because the alternative is letting Reform define what counts as Judaism.
The mid-twentieth-century American case sharpens the picture. American Conservative Judaism is the next pressure. It accepts the Principles in spirit while permitting historical-critical Bible scholarship that strains Principle 8. JTS faculty from Solomon Schechter through Saul Lieberman privately hold positions about the composition of the Pentateuch that any eighteenth-century European rabbi might have ruled heretical. Lieberman maintains a careful public Orthodoxy while teaching at JTS. The coalition cost of acknowledging the substantive theological diversity within mid-century American Orthodox-adjacent academia is too high, so the rhetoric of the catechism gets policed harder while the actual scholarship inside the catechism’s nominal jurisdiction becomes more permissive.
This is the context for Lieberman’s ketubah. The halakhic substance of his clause was sound. Herzog privately agreed. R. Abraham Price of Toronto agreed to sit on the proposed beit din. The coalition cost was prohibitive, because cooperating with a Conservative scholar on a halakhic fix would have breached the boundary that the catechism’s rhetoric was patrolling. So Herzog signed a public condemnation. Strange bedfellows again. Herzog and the RCA leadership disagreed on substance and aligned coalitionally. Lieberman and the RCA leadership agreed on much of the underlying halakha and disagreed coalitionally. The catechism is not what determines the alignments. It is what marks them.
By the late twentieth century, the catechism has become the discipline. R. Yehuda Parnes’s 1991 article in the Torah u-Madda Journal makes the position explicit. Anything contradicting the Principles is heresy and is forbidden to study. Shapiro’s book is the response. Note what is happening structurally. Parnes is a Modern Orthodox figure at Yeshiva University. The journal is the flagship of Modern Orthodox intellectual life. Why does Parnes need to escalate? Modern Orthodoxy is under coalition pressure from two directions. To its left, the Conservative movement and what becomes Open Orthodoxy are creating intellectual space for biblical criticism, women’s ordination, and historical scholarship that strains the Principles. To its right, the Haredi world is consolidating its own catechetical discipline through institutions like Lakewood and ArtScroll, creating pressure on Modern Orthodoxy to prove its own boundary discipline. Parnes is doing coalition maintenance. The catechism is the technology he reaches for.
Shapiro’s reply is a coalition move from inside the same camp. He is a Modern Orthodox scholar at the University of Scranton, publishing with the Littman Library in Oxford, citing rishonim and aharonim to show that the Parnes line cannot be sustained from within the canon. The encyclopedic citation strategy is not just thoroughness. It is coalitional argument. Shapiro cannot win by saying that the Principles are wrong. Within his coalition, that move loses. He has to win by showing that authoritative figures within the Orthodox tradition itself have held nearly every position the Principles forbid, while remaining authoritative figures whose works are studied and whose halakhic positions are followed. The book is a coalitional demonstration that the Parnes line marks Shapiro’s own teachers and predecessors as heretics, which the coalition will not accept. Shapiro’s wager is that the coalition’s commitment to those authoritative figures is stronger than its commitment to the catechism’s substantive content. He is right about this, which is why the book has circulated within Modern Orthodoxy without producing his expulsion.
The Slifkin episode runs the same logic in the Haredi camp with different stakes. Nathan Slifkin’s books defend the compatibility of Torah with contemporary science by arguing that Chazal sometimes erred on scientific questions, a position Maimonides held in his own form. From a Modern Orthodox perspective, Slifkin’s books are obvious assets. From a Haredi coalition perspective, they breach the boundary that holds the kollel system together. The bans of 2004 and 2005 mobilize a list of gedolim who have not read the books to declare them heresy. Look at this through strange bedfellows. Hasidic and Lithuanian gedolim sign together. Sephardic and Ashkenazic gedolim sign together. Posek and Rosh Yeshiva sign together. Each of these alignments is unstable on substantive questions. They align on the Slifkin question because Slifkin’s position threatens a coalition boundary that all the signers, for their own reasons, need to hold. Principle 8 is the live wire. Slifkin’s claim that some Talmudic scientific statements are wrong is read as breaching the seamless authority of the rabbinic chain that Principle 8 underwrites. The bundle requires that the chain hold without breach. Letting the breach in destabilizes the bundle. The signers do not need to agree with each other on what they are defending. They need to agree on what they are excluding.
The internal strange bedfellows of contemporary Orthodoxy are where the analysis gets richest. Consider Chabad and Brisk. Both rhetorically accept Principle 12, the future Messiah. Post-Rebbe Chabad has produced a substantial faction holding that the late Rebbe is the Messiah, with iconography, prayers, and credal recitations to that effect. By Maimonidean standards as the rest of the Orthodox world reads them, this is a serious deviation. Brisk and the Lithuanian world treat Chabad messianism as an embarrassment but do not treat Chabad as outside the coalition. Why? Chabad’s institutional contribution to global Orthodox infrastructure is large enough that excluding Chabad costs more than tolerating its messianism. The catechism’s substantive enforcement gives way to coalition cost-benefit analysis. The bundle holds the strange bedfellows.
Or consider the Hasidic-Mitnagdic accommodation around saints and intermediaries. Principle 5 holds that worship is owed to God alone and that intermediary worship is forbidden. Hasidic practice surrounds the rebbe with kvitlach, with prayers at his grave, with the conviction that the rebbe’s intercession reaches God. Maimonides would have ruled this avodah zarah. Eighteenth-century Mitnagdim made exactly this charge against early Hasidism. The coalition fight ended in accommodation by the early nineteenth century, and by the twenty-first century the practices are normal in much of the Orthodox world. Even Lithuanian-yeshivish circles travel to gravesites of tzaddikim and pray for intercession. Principle 5 has been substantively breached across the coalition while remaining rhetorically intact.
Consider Modern Orthodox Bible scholarship. Yeshiva University’s Bible department has for decades trained students who accept post-Mosaic insertions in the Pentateuch (the seven verses describing Moses’s death being the canonical safe case, but extending to other passages in much current scholarship). This breaches Principle 8 as Maimonides drew it. The Modern Orthodox coalition tolerates this because the alternative is conceding the field to historical-critical scholarship done outside the camp. Haredi Orthodox excludes the same scholars while sharing the rhetorical Principle 8 with Modern Orthodox. The shared rhetoric masks substantive distance. The substantive distance is what defines the actual sub-coalitions.
Consider the kashrut industry. The competitive forces of kashrut certification have driven standards upward over the last fifty years to a point where R. Moshe Feinstein’s published rulings on chalav stam and on what counts as glatt are no longer followed in practice by the bulk of the certifying agencies. None of those agencies will say that R. Feinstein erred. They will say that the standards have risen, or that we hold higher today, or that times have changed. The catechism that R. Feinstein is the great American posek of the twentieth century gets rhetorically maintained while the substance of his rulings gets rhetorically bypassed. The bundle of “we are loyal to R. Feinstein” and “we maintain standards stricter than R. Feinstein’s” coheres coalitionally even though it does not cohere on substance.
What does the bundle survive by? It survives by absorbing the flexibility that pure substantive enforcement could not absorb. The catechism does not enforce the substantive content of the thirteen propositions. It enforces the requirement that members of the coalition use the catechism as the form of their disagreements with each other. Hasidim and Mitnagdim are required to dispute within Maimonidean vocabulary, even when the substantive theology of either side strains that vocabulary. Modern Orthodox and Haredi are required to defend their respective approaches as continuous with the Principles, even when their actual positions diverge sharply. The catechism functions as the language game within which Orthodox theological disagreement gets conducted. It survives because membership in the language game is what makes you Orthodox, and the substantive positions within the language game can vary enormously without expelling anyone from the game.
This explains why Shapiro’s book has not produced his excommunication. Shapiro is playing within the language game. His argument is that the Principles do not exhaust the tradition. He is not saying the Principles are wrong. He is saying that the canonical authorities on whom the tradition depends have themselves held positions contradicting the Principles. The book works inside the catechism’s formal authority while showing that its substantive authority cannot have been what later voices have claimed. Parnes, who attempted to enforce the substantive authority to the letter, made a coalition error. He demanded that the language game enforce its own propositional content. The coalition could not afford this, because the propositional content has been negotiable for centuries and the coalition’s actual cohesion has been linguistic and ritual rather than propositional.
This explains, too, why Reform and Reconstructionist Judaism are outside the coalition while Conservative Judaism sits in a contested middle. Reform explicitly rejected the catechism’s rhetoric as well as its substance. It refused to play the language game. Reconstructionist did the same in a different idiom. Conservative Judaism kept the catechism’s rhetoric while permitting substantive scholarship that the rhetoric formally forbids. This is what produces the half-in, half-out status that has dogged Conservative Judaism since its founding. The strange bedfellows logic does not protect a movement that visibly retains the catechism while substantively departing from it. The protection works for movements that play the language game without examining whether their substantive positions match. Orthodoxy plays the language game without examining. Conservative was caught in the open, examining and departing. Reform refused to play. The protection from Alliance Theory’s perspective is reserved for the unexamined coalitional rhetoric, not for honest acknowledgement of substantive change.
What does this mean for the contemporary Orthodox world? The bundle’s survival requires continued rhetorical commitment to the Principles, plus continued tolerance of substantive variation, plus continued exclusion of those who breach the rhetoric. Open Orthodoxy is the live test case. It maintains the rhetoric of the Principles while permitting women’s ordination, expanded biblical scholarship, and theological pluralism that strains Principle 8 and others. The Orthodox right has moved to expel Open Orthodoxy from the coalition. The expulsion is not happening because Open Orthodoxy’s positions are substantively further from the Principles than the positions of various Hasidic or Modern Orthodox sub-coalitions already within the camp. The expulsion is happening because Open Orthodoxy’s institutional break (Yeshivat Chovevei Torah, ordination of women, formal alignment with Conservative positions on certain matters) has crossed the line from substantive variation to organizational rebellion. The catechism’s rhetorical authority is being maintained against an out-group whose substantive positions are not unique within the coalition. Coalition logic, not propositional logic, is doing the work.
The strange bedfellows reading also explains why Shapiro’s book reads as a quiet shift rather than a frontal challenge. Shapiro is not telling the Orthodox world that its catechism is wrong. He is telling the Orthodox world that its catechism is more flexible than its current spokespeople pretend. The book’s effect is to widen the rhetorical envelope while leaving the rhetoric in place. This is sustainable coalitionally. A frontal challenge of the kind Louis Jacobs mounted, which led to his expulsion from the British United Synagogue, is not sustainable, because it forces the coalition to choose between accepting a substantive critique of the catechism or expelling the critic. Shapiro’s strategy avoids that choice. He stays inside the rhetoric while showing that the rhetoric houses more than its current enforcers admit.
The Pinsof, Sears, Haselton paper makes a prediction worth testing on this material. They predict that political belief bundles will be more coherent in their coalition signaling than in their logical structure, and that the bundles will adjust over time to track coalition need. The Thirteen Principles fit this prediction. The bundle’s twelfth-century calibration was for a coalition facing Karaite, Christian, Islamic, and Aristotelian rivals. The bundle’s fifteenth-century revival was for a coalition facing Christian polemic. The bundle’s nineteenth-century redeployment was for a coalition facing Reform. The bundle’s twentieth-century enforcement was for a coalition facing Conservative encroachment. The bundle’s twenty-first-century deployment is for a coalition facing Open Orthodoxy and the broader pressures of progressive Judaism. The boundary markers shift as the rivals shift. The bundle survives because it carries the rhetorical scaffolding within which the boundary maintenance can be conducted.
Shapiro’s contribution, read through this frame, is a sociological intervention disguised as a historical one. He is not refuting the catechism. He is documenting the gap between the catechism’s rhetorical authority and its substantive purchase across centuries. That gap is what Alliance Theory predicts of any successful coalition document. The book’s lasting value is not the answer to whether the Principles are correct. It is the demonstration that the Principles have been working as something other than what their formal status suggests. Once you see that, the question of correctness becomes secondary. The interesting question becomes what coalition work the catechism is doing now, who is paying for that work, and what the cost is to the people inside the coalition of holding the rhetoric in place while the substantive ground shifts beneath them.
The cost is substantial and falls on the people the coalition leadership does not bear. Women trapped in dead marriages because the agunah problem cannot be solved without breaching the coalition discipline. Boys driven into prolonged kollel learning because the catechism’s Principle 9 gets cashed out as resistance to any institutional adaptation. Children whose intellectual development is constrained by the Slifkin-style enforcement of Principle 8. Sexual abuse cases not reported because the catechism’s broader infrastructure of rabbinic authority cannot accommodate external scrutiny. The catechism is rhetorical. The costs of holding it in place are not.
Shapiro’s book does not pursue the cost question, because that is not the book it is. But the book sets up the question. Once you see that the catechism is coalition technology rather than substantive theology, you can ask what the coalition is buying with the technology and what the technology is costing the people inside it. The strange bedfellows reading opens that question. The book stops short of it.