The breathing library of Rabbi Duncan

0:00The Toyota Tundra and Tacoma are built to keep going, blending rugged muscle with precision engineering, all supported by Toyota's time-tested legacy of dependability. Step into a Tundra and feel the unyielding capability with the available iForce Max engine Tundra puts out impressive power, torque, and towing performance and the roomy high-tech cabin keeps you connected on the go. Or take a look at Tacoma, made for drivers who push past the path, agile, tough and relentless with available features like crawl control, a portable JBL speaker, a power lift gate, so gear goes in fast and the adventure keeps moving. The Tacoma and Tundra are engineered to endure season after season, mile after mile. So drive one home today, visit toyota.com or stop by your local Toyota dealer to find out more Toyota. Let's go places. Welcome to today's deep dive. I am just so glad you could join us because we have a truly fascinating mission today. You really do? We are going to be exploring the wonderfully paradoxical life of a 19th century Scottish figure.

1:00So picture a man who had mastered over a dozen languages, a scholar who was literally described by his contemporaries as a breathing library of wisdom. A breathing library? It's a great title. It is. And you would think someone with that kind of intellect would have left behind just shelves and shelves of thick, dusty books. You assumed so. He didn't. He left behind almost no written work of his own. It's a remarkable historical puzzle, honestly, to guide us today. We are diving into a comprehensive Wikipedia biographical article on John Duncan. John Duncan. Right. He lived from 1796 to 1870. And he was a theologian, a linguist, and a man who became famously known to history simply as Rabbi Duncan. And the contradictions in this man's life are just the ultimate hook for me. We are talking about someone who began his rigorous formal theological studies as an outspoken atheist, which is wild. Exactly. How exactly does an atheist become a revered theologian? And how does a recognized genius, someone whose colleagues actually said he could speak

2:04his way to the wall of China? Yeah. How does a guy like that become best known, not for grand sweeping lectures, but simply for taking walks in the park with his students? Okay. Let's unpack this. Stan John Duncan, we have to start at the beginning, which was quite humble, especially when you consider the towering intellect he would become. He was born in Gilchumston, Aberdeen in 1796. He was the son of a working class shoemaker. Okay. So very modest beginnings. Very modest. But despite that, he clearly possessed an extraordinary mind very early on. He studied at Mayor Shaw College in the University of Aberdeen, and he eventually earned his master arts degree in 1814. Wow. Say it's quite young. It was. But his path forward into theology was anything but traditional, or straightforward for that matter. That feels like a massive understatement. Because when you look at the timeline in our source, there is this one detail that just stands out. It's wildly relatable for anyone listening who has ever, you know, suffered from imposter syndrome.

3:04Oh, absolutely. Or anyone who's ever felt fundamentally out of place in their chosen environment. Duncan began his formal theological study while identifying as a strict atheist. Exactly. And to understand the weight of that, you really have to look at the religious landscape of 19th century Scotland. This was a society where theology was the absolute pinnacle of academic rigor. It was intellectually demanding, highly structured, and deeply integrated into the culture. It wasn't just a side subject. No, not at all. Duncan pursued the study through two different avenues. First, the anti-Burger secession church, and later the established church of Scotland. Can we pause on those specific church names for a second? Sure. Because for those of us who aren't, you know, experts in 19th century Scottish ecclesiastical history, what do those groups actually represent? It is an important context. So the established church was the main state-recognized church of Scotland. Okay. The mainstream one. Right. The anti-Burger secession church, on the other hand, was part of a movement that had

4:06broken away from the main church over disputes about how ministers were appointed. Oh, okay. The anti-Burger's in particular were a strict faction. They basically refused to take oaths to local town councils, believing it compromised their spiritual independence. Got it. So Duncan was immersing himself in some of the most rigorous, highly debated, and intensely principled theological environments of his day. Yes. Internally, he didn't believe a word of the foundational premise. He really didn't. It makes you wonder how he function day to day. I mean, you are studying those profound questions of divinity, surrounded by devout peers and instructors who are debating the finer points of church independence. And you're viewing it all through the lens of atheism. Yeah. He must have treated it like this massive philosophical puzzle. What's fascinating here is the sheer length and methodical nature of his intellectual and spiritual evolution. It was not an emotional overnight revelation. Not a sudden lightning bolt. No.

5:06It was a grueling decade-long process of textual and philosophical analysis. By the time he finished his formal studies in 1821, he had shifted his worldview from atheism to becoming atheist. Meaning, he believed in a God, but not necessarily the specific Christian framework he was studying. Exactly. And the timeline gets even stranger from there. Right. But by his own later admission, he still was not fully converted to the Christian faith at that time. Which is an incredible position to be in. Yeah. He is authorized to deliver a message he hasn't fully bought into. He wasn't truly converted until 1826, and that was through the ministry of his Swiss Protestant figure, named Cesar Milan. So that was the turning point. It was. Only then did he truly align his internal beliefs with his external profession. He commenced his ministry at Percy in Perthshire in 1830, moved to Glasgow in 1831, and was finally ordained as the minister of Milton Parish Church on April 28, 1836.

6:10Just think about the tenacity that requires. To pursue a discipline so deeply, for well over a decade, before fully believing in it yourself. I mean, most people would just walk away when the cognitive dissonance got too loud. They really would. But Duncan just kept digging deeper into the original texts and the philosophy, until he found a foundation he could actually stand on. And that intense textual focus is what led to his absolute mastery of languages, which brings us to a pivotal moment in his career. This is in 1836. The chair of Oriental Languages opened up at the University of Glasgow, and Duncan decided to offer himself as a candidate for the professorship. Now when we apply for a job today, we might pet our resume just a little bit. Maybe we exaggerate our proficiency in a software program. But the application John Duncan submitted is on another level entirely. He didn't just claim he was good at a few languages. He formally stayed that he knew Hebrew, Syriac, Arabic, Persian, Sanskrit, Bengali, Hindustani, and Muradi. And remember the context of the 1830s.

7:12There are no online courses. Right, no apps on your phone. There are no audio tapes to practice pronunciation. Learning Sanskrit or Muradi in Scotland meant relying entirely on imported, highly complex grammar books and raw texts. Just pouring over manuscripts. Yes. But he didn't stop at just listing those eight languages. In regard to Hebrew literature specifically, he professed to know essentially everything that had ever been written. The source is very specific about this too. He claimed knowledge of the grammarians, the commentators, the law books, the controversial books, the books of ecclesiasticals, classics, and even the Bill Letts. Right. And Bill Letts simply refers to the fine literature and poetry of the language. So he wasn't just claiming to know the alphabet or the religious laws. He was claiming to have internalized the entire cultural, artistic, and legal universe of the Hebrew language. It is a staggering assertion of mastery. It has to be one of the most confident job applications in academic history. But here's where it gets really interesting.

8:13Despite this massive, unbelievable flex, his application actually failed. It did. The university passed him over for the chair. It is a surprising twist. We don't have the exact committee notes on why they rejected him. Perhaps they thought he was exaggerating, or perhaps his unconventional background worked against him. That makes sense. The University of Glasgow did give him an honorary LLD, a doctorate of laws, a few years later in 1840. So it was a clear recognition of his undeniable genius, even if he didn't get the specific job he wanted. But that rejection ultimately forced a pivot that completely defined his historical legacy. On October of 1840, the Church of Scotland was experiencing a surge of interest in the conversion of the Jewish people. And Duncan, with his deep, long-standing interest in Israel and his absolute mastery of Hebrew, was the perfect fit. The timing was perfect. He was appointed as the first missionary to the Jews from the Church of Scotland. And this was not just a quiet administrative role. In 1841, he actually set out for Pest, which is part of modern day Budapest in Hungary.

9:17Right into the heart of Europe. Exactly. It was a major cultural crossroads. During his mission, he had the crucial support of the Duchess Maria Dorthea of Wirtenberg. She was very sympathetic to his cause and helped facilitate his work in the region. And according to the historical record, his work there was wildly impactful. Our source quotes an author named John McLeod, who wrote that, since the days of the Apostles, there was hardly on records such as striking work of grace among the Jews as took place in the days of his laborers in Budapest. That is an incredibly high level of praise within theological circles. I bet. To be compared to the era of the Apostles means his work was viewed as fundamentally transformative. During his brief two years in Hungary, his mission led to the conversions of some very notable figures. Like who? Well, among them were Adolf Safer and Alfred Ettersheim, both of whom would go on to become highly significant theologians and historical figures in their own right. And it was also during this deeply immersive era that he earned his famous moniker.

10:19He became known affectionately to history as Rabbi Duncan. Rabbi Duncan. It is such a striking detail. You have a Scottish Presbyterian minister, but the title Rabbi stuck to him for the rest of his life. It speaks volumes about how he was perceived by the Jewish community he was interacting with. It wasn't a mocking nickname. It was a mark of profound respect for his deep linguistic knowledge and his genuine immersion in the culture. So they really respected him. Absolutely. He wasn't viewed as a superficial outsider coming in with a pamphlet. He could debate the law, the commentaries, and the poetry in their own language at the highest possible intellectual level. That's incredible. Yeah. He eventually left Hungary in 1843 and the timing of his return to Scotland coincided with a massive earthquake in the national church. Yes. A defining event known as the Disruption of 1843. Right. This is crucial context for the second half of his life. The Disruption was a major schism where over 400 ministers fundamentally walked out of the established Church of Scotland.

11:20400? Yeah. They gave up their incomes, their status, their homes, all to form the free Church of Scotland. The core issue, much like the earlier secession, was about whether the state or the church had the ultimate power to appoint ministers to local congregations. It was a huge defining moment of principle. But out of this new free Church movement, they needed to establish their own academic institutions to train new ministers, which led to the creation of new college in Edinburgh and guess who they invited to feel the chair of Hebrew and Oriental languages? John Duncan. He finally got the academic chair he had applied for all those years ago in Glasgow. The redemption there. Definitely. He accepted the position at new college and he occupied that chair for 27 years right up until his death. Which brings us to the era of his life that I find the most perplexing. This is the era of the absent-minded Socrates. It's a great description. You have a man whose brain is overflowing with languages, who spend 27 years as a professor at a major theological institution.

12:22Yet the paradox of his output is that he wrote practically nothing. It is a striking irony. Our source notes that he edited a British edition of Edward Robinson's lexicon of the Greek New Testament in 1838 and he published a few scattered lectures. But there are no major books. Nothing. No sweeping of multi-volume theological treatises. For a man of his intellect in the 19th century, that is highly unusual. The article actually includes a great observation from Thomas Guthrie, referring to the sheer linguistic power of Duncan and his colleague, Alexander Black. Oh, I love this quote. Yeah. Guthrie used to joke that those two could speak their way to the wall of China, yet no corresponding products of their immense learning were ever given to the public. All of that knowledge was contained within his mind, but he wasn't interested in turning out publications. And this lack of output seems deeply tied to his very specific and somewhat eccentric personality. We have a quote from a biographer named Sinclair, who described Duncan as being remarkably absent-minded

13:25in regard to the common things of life, but simultaneously intensely exercised about the higher and eternal realities. He sounds like the absolute archetype of the absent-minded professor. He's probably wandering around Edinburgh for getting where he put his spectacles, while his brain is actively untangling the infinite nature of the universe. That's probably exactly what was happening. And that intense internal focus apparently made him a pretty terrible traditional teacher. That is what the historical record suggests. The text notes he was only a moderately successful theological educator if you judge him by traditional classroom metrics. Right. The standard metrics. He was described as highly fertile, but also completely undisciplined. He did not deliver his best work while standing still behind lectern, reading from notes. Some of his contemporaries even thought the free church would have been better off if they just let him abandon formal lectures entirely. Because his real magic, his true genius as an educator, happened when he was moving. Yes. He would conduct walks twice a week with his students through Edinburgh's Princess Street

14:26Gardens. He was a parapetetic teacher, teaching while walking, just like the ancient Greek philosophers. There is a beautiful description of this from one of his students, A. Taylor Innis. He said it seemed as if Pascal had shuffled into the sandals of Socrates and walked up and down Edinburgh's streets. Wow. It is a profound analogy when you unpack it. Blaze Pascal was a brilliant, deeply introspective mathematician and theologian who famously wrestled with the hiddenness of God and the nature of faith. Socrates, on the other hand, never wrote a single word down. He just walked through the marketplace, engaging people in relentless conversational questioning. So Duncan was the perfect fusion of those two historical giants. He had the deep, tormented, hard-won theology of Pascal, but he delivered it entirely through the street-level conversational method of Socrates. If we connect this to the bigger picture, it presents a fascinating counter-narrative to how we usually measure intellectual success. It really does. It's kind of a culture of publish or perish, whether you are in academia striving for ten

15:31year or just existing in the modern economy where you are expected to constantly create visible, measurable content. Content creation is everything now. Right. But Duncan proves that profound, lasting impact does not always require a massive paper trail. His impact was deeply relational. It was transferred directly, mind to mind, person to person, on those walks through the gardens. He didn't need to write a book, because his students effectively became his living books. And Duncan seemed incredibly self-aware about this dynamic. He famously and quite self-deprecatingly described himself as being just a talker. Just a talker. But our source is quick to point out that he possessed a true genius for epigrammatic wisdom. Epigrammatic wisdom, meaning he spoke in these brilliant, dense, highly memorable sound bites. And his legacy was preserved entirely because of the students who walked beside him. They wrote it down. One student in particular, William Knight, realized the value of what he was hearing and began compiling a book of Duncan's sayings.

16:31It was published under the title, Colloquia Parapetetica, which translates roughly to conversations while walking. Or deep sea soundings. Right. And later, another edited version of his sayings was released fittingly called, Just a Talker. The Wikipedia article provides two specific examples of his aphorisms from that volume. And they're brilliant case studies in how his mind worked. Let's look at the first quote. Duncan said, I am first a Christian, next to Catholic, then a Calvinist, fourth a pato Baptist, and fifth a Presbyterian. I cannot reverse this order. It is a remarkable statement of identity structured almost like a nesting doll. And to fully appreciate it, we need to understand the terms he is using. When he says Catholic here, he means it in the original sense of the universal worldwide body of believers, not the specific Roman Catholic Church. Got it. The lower case sea Catholic. Exactly. Once he drills down, he identifies as a Calvinist, referencing a specific theological framework of grace, then he calls himself a pato Baptist, which is a theological term, meaning he believes

17:34in the baptism of infants, rather than just consenting adults. Finally, he arrives at Presbyterian, his specific structural denomination. By laying it out that way, he is showing an incredible level of intellectual honesty and prioritization in an era like the 19th century, which was defined by massive sectarian splintering, like the disruption we just talked about. He refused to let the secondary details overshadow the primary ones. He really did. He knew exactly where the universal foundations lay, and he prioritized those above the hyper-specific local debates of his day. Exactly. The second quote the article gives us highlights a different skill entirely. His ability to use imagery to explain incredibly complex debates. Duncan said, hyper-Calvinism is all-house and no-door. Our minionism is all-door and no-house. It's so good. Even if you don't have a degree in historical theology, the architecture of that analogy immediately gives you a sense of the debate. But let's clarify what those two concepts actually represent. This is where his genius for summary really shines.

18:36In the theological debates of his era, hyper-Calvinism leaned heavily into the absolute sovereignty of God and strict predestination. The idea that God has already determined everything. Right. Duncan is arguing that the system is like a structurally sound house, but it has no door. There is no room for human-free will, no clear entry point for an individual's choice. And on the flip side you have Arminianism. Right. Arminianism is a theological system that places a massive emphasis on human-free will, and the individual's ability to choose or reject grace. So Duncan describes this as being all-door and no-house. It is entirely focused on the entrance, the invitation. But in his view, it lacked the rigid, secure, structural foundation of divine sovereignty behind it. So what does this all mean for you listening right now? Well, if you ever find yourself needing to present dense information, or if you're trying to explain a highly complicated idea to a colleague or a friend, John Duncan is offering a masterclass. He really is.

19:36You can apply this epigrammatic style to your own communication. If you want people to remember something, don't just hand them a textbook of dry facts. To steal your complex ideas into vivid, memorable imagery. Give them a house and a door. Give them an anchor for their thoughts they can hold in their mind long after the conversation is over. It is the ultimate tool for a teacher. He gave his students these brilliant little mental models, which is exactly why William Knight was able to remember them and write them down years later. As we start to wrap up the biographical details of Rabbi Duncan's life, the source also reveals a deeply human and often quite tragic sight to his story behind all the intellect. He was married twice and he experienced profound loss. He married his first wife Janet Towers in January 1837. Tragically, she died just two years later following the premature birth of their second child. They did have a daughter together, Annie, who was born in 1838. He later married for a second time to Janet Douglas, who was a widow, but sorrow followed him again. She also passed away before him, dying in October of 1852.

20:40That's heartbreaking. It is. The second wife, he had another daughter Maria, born in 1842. The historical record notes that both of his daughters eventually married and moved abroad. John Duncan himself passed away on February 26, 1870 at the age of 73 or 74. If you visit Edinburgh today, you can actually find his grave. Oh, really? Yeah. He's buried under a large striking obelisk in the northeast section of the Grange Cemetery. The inscription on his tombstone captures his complex essence beautifully. He calls him an eminent scholar and metaphysician, a profound theologian, a man of tender piety, and of a lowly loving spirit. The eulogies left by his contemporaries really hammer home the profound impact of this man who claimed to be just a talker. William Garden Blakey praised his profound originality, deep piety, and childlike simplicity, humility, and affectionate-ness. What a tribute. Blakey noted that it was this unique combination of massive intellect and childlike humility that commanded the respect of every student.

21:40And of course, William Knight, the student who meticulously preserved his quotes, offered perhaps the greatest tribute. Upon Duncan's death, Knight simply remarked that with him has perished a breathing library of wisdom. A breathing library of wisdom. This raises an important question, and it is a thought I want to leave you to mull over today. We have spent this time marveling at John Duncan's intellect. His mastery of a dozen complex languages, his deep reading of endless texts, his internalizing of an entire cultural universe. In our own lives, we all strive to master our own languages, whether that is a technical skill, a professional discipline, or a deep well of specialized knowledge. But Duncan didn't build a legacy by hoarding that knowledge, or publishing dense, impenetrable books to prove how smart he was. He used his vast intellect to craft simple, memorable doors for other people to walk through. It's a great way to put it. So think about the specialized knowledge you have acquired in your own life. Are you building a house with a door to actively invite others into your understanding? Or are you just stockpiling facts inside yourself like a closed-off, unreadable library?

22:45How are you translating what you know into a simple walk in the park with someone else? That is a brilliant challenge to end on. It really shifts the focus from simply acquiring knowledge to finding the most human way to share it. Thank you so much for joining us on this deep dive into the paradoxical brilliant life of Rabbi John Duncan. We hope you found some aha moments today and maybe a little inspiration for your next conversation. Keep questioning. Keep seeking out those surprising stories and above all, keep learning. We will catch you next time. The Toyota Tundra and Tacoma are built to keep going, blending rugged muscle with precision engineering, all supported by Toyota's time-tested legacy of dependability. Step into a Tundra and feel the unyielding capability with the available iForce Max engine Tundra puts out impressive power, torque, and towing performance and the roomy high-tech cabin keeps you connected on the go. Or take a look at Tacoma made for drivers who push past the path, agile, tough and relentless with available features like crawl control, portable JBL speaker, a power lift gate, so gear goes in fast and the adventure keeps moving.

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