Chullin 93

Hook

Have you ever looked at a smartphone, a car engine, or even a pre-packaged sandwich and wondered about the invisible world of effort that went into making it work? We live in a highly convenient, "push-button" world. We press a screen, and food arrives at our door. We turn a key, and our car starts. But because everything is packaged so neatly, we rarely have to look under the hood. We don't see the inner workings, the intricate wiring, or the raw materials.

In the Jewish tradition, looking under the hood isn’t just for engineers, mechanics, or inspectors. It is actually a profound spiritual practice. The ancient sages believed that the physical world is a canvas for mindfulness. They believed that holiness isn’t found by escaping our physical lives, but by diving deeply into them.

Today, we are going to look at a text that might seem, at first glance, like an ancient biology class or a manual for a butcher shop. We are going to explore Chullin 93a, a passage from the Talmud (an ancient collection of Jewish legal debates and stories) that deals with the anatomy of animals, the difference between hidden and revealed things, and how we handle our mistakes.

If you have ever struggled with admitting you don’t know something, wondered how to handle a bad habit that feels hard to break, or felt overwhelmed by the hidden complexities of life, this text has some surprising, beautiful wisdom for you. Grab a cup of tea or coffee, get comfortable, and let’s look under the hood together.

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Context

Before we jump into the text, let’s get our bearings. Here are four quick bullet points to help you understand who wrote this, when they wrote it, and what they are talking about:

• The Source: This lesson comes from Tractate Chullin, a volume of the Talmud (an ancient collection of Jewish legal debates and stories) that focuses on the practical laws of food preparation, animal welfare, and the spiritual dimensions of eating.
• The Big Idea: The central theme here is Kashrut (food prepared according to Jewish dietary laws). Specifically, the text discusses how to process meat so that it is fit for consumption. This involves identifying and removing certain parts of the animal that the Bible prohibits.
• The Key Term: The text talks a lot about Chelev (forbidden animal fats that Jews cannot eat). According to the Torah (the first five books of the Hebrew Bible), certain fats on domesticated animals are set aside as sacred and cannot be consumed. Identifying which fats are Chelev and which are regular, permitted fats is a major task of the rabbis.
• The Setting: This conversation took place roughly 1,500 years ago in the great Jewish academies of Babylonia (modern-day Iraq) and the Land of Israel. The rabbis you will meet—like Shmuel, Rabbi Yoḥanan, and Rava—were community leaders, teachers, and keen observers of the natural world.

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Text Snapshot

Here is a look at a few key moments from Chullin 93a. We have translated and simplified the text into plain English so you can get a feel for how the conversation flows. You can view the original text on the Sefaria website here: Sefaria - Chullin 93.

The Gemara (the section of the Talmud analyzing and debating laws) states: "The fat that is covered by the flesh is permitted. When the Torah states that the fat 'upon the loins' is prohibited Leviticus 3:4, it refers only to the fat above the loins, but not the fat that is inside the loins...

Rabbi Yoḥanan said: 'I am not a butcher, and I am not the son of a butcher. But I remember what they would say in the study hall: When an animal is alive, its limbs separate at the joints as it walks, so that the fat under the loins is exposed...'

The Sages also discussed: 'The veins that are in the foreleg of an animal are forbidden. Rav Safra said: Moses! Did the Creator say: Do not eat meat? Rava answered: Moses! Did the Creator say: Eat blood? These veins are forbidden only because they are filled with blood. Therefore, if one cuts the foreleg open and salts it to remove the blood, it is permitted... But those strands that contain forbidden fat have no remedy and can never be eaten.'"

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Close Reading

Now that we have read the text, let's slow down and unpack what is actually happening here. At first, it looks like a dry debate about anatomy. But if we read closely with the help of some classic commentators, we will find a treasure trove of lessons for our daily lives.

Insight 1: What is Covered vs. What is Revealed

The text begins with a fascinating rule: "The fat that is covered by the flesh is permitted." The Torah (the first five books of the Hebrew Bible) prohibits certain fats, but only those that are "upon" the organs, exposed and visible Leviticus 3:4. If the fat is deeply tucked away inside the muscle tissue, it is completely fine to eat.

But then, the Talmud (an ancient collection of Jewish legal debates and stories) raises a problem. There is a specific type of fat located under the loins. On a still, quiet animal, this fat looks completely covered by flesh. It seems like it should be permitted.

Enter the physical reality of movement. The sages observe that when the animal is alive and walking, its limbs stretch, its joints open up, and that "hidden" fat is suddenly exposed to the air.

Rashi (an eleventh-century French rabbi and famous commentator) explains this in detail. In his commentary, he uses the Old French word flancs (loins, flanks, the inner muscles of the thigh next to the kidney) to describe this area. He points out that while the fat looks hidden when the animal is lying down, the physical act of walking changes its status. Because it becomes exposed during the animal's natural movement, it cannot be considered truly "hidden." It is classified as forbidden Chelev (forbidden animal fats that Jews cannot eat).

Think about what this means on a psychological level. We all have parts of ourselves that we keep tucked away. We have "hidden" habits, secret thoughts, or quiet tendencies that we think nobody else can see. We might tell ourselves, "As long as it's covered up, it doesn't affect anyone else."

But the Talmud is reminding us that life is about movement. When we start walking—when we face stress, when we interact with others, or when we are put under pressure—the joints of our character stretch. The things we thought were perfectly hidden have a way of showing up in our actions, our words, and our energy. True integrity isn't just about how we look when we are standing still and everything is easy. It is about what is revealed when we are in motion.

Insight 2: The Power of Saying "I Don't Know"

One of the most beautiful lines in this entire passage comes from Rabbi Yoḥanan, one of the greatest leaders of his generation. When asked about animal anatomy, he doesn't pretend to be an expert. He openly declares:

"I am not a butcher, and I am not the son of a butcher."

Imagine a world-class scholar, a person revered by thousands, standing up and saying, "Hey, I don't actually cut meat for a living. I don't have a degree in animal anatomy."

Rabbi Yoḥanan shows us what intellectual humility looks like. He doesn't let his ego get in the way of the truth. He acknowledges his limits, but then he offers what he does know: "But I remember what they would say in the study hall." He relies on the collective wisdom of his community and the practical, hands-on knowledge of the working-class butchers who did this labor every single day.

The Rashba (a thirteenth-century Spanish rabbi and Talmud commentator) notes that this humility is crucial for Jewish law. We cannot make good decisions without consulting the people who actually do the work. The rabbis didn't sit in ivory towers; they went down to the slaughterhouses, spoke with the butchers, and learned from their real-world experience.

In our own lives, we often feel an immense pressure to have all the answers. Whether at work, in our families, or in social settings, we think that admitting ignorance is a sign of weakness. Rabbi Yoḥanan teaches us the exact opposite. Saying "I don't know" is a sign of strength. It opens the door to learning, builds trust, and connects us to the expertise of others. You don't have to be a "butcher" to appreciate the beauty of how things work—you just have to be willing to ask and listen.

Insight 3: Transformable Blood vs. Unchangeable Fat

Let’s look at another fascinating distinction the Talmud makes. The text talks about two different things we are not allowed to eat: blood and certain fats. But the way we handle them is completely different.

If a piece of meat has veins filled with blood, we don't throw the meat away. We can "rectify" it. By cutting the meat open and salting it (or roasting it over an open fire), the blood is drawn out, and the meat becomes perfectly permitted to eat.

But if a piece of meat contains forbidden fat, there is no amount of salting or cooking that can make it okay. The fat has no "remedy." The only solution is to physically cut it out and discard it.

The Gemara (the section of the Talmud analyzing and debating laws) highlights this difference with a dramatic dialogue. Rav Safra asks: "Did the Creator say: Do not eat meat?" (Meaning, are we trying to make life unnecessarily difficult?). Rava responds: "Did the Creator say: Eat blood?" (Meaning, we have to respect the boundaries of life and vitality).

This distinction offers a beautiful model for personal growth. In our lives, we face two different kinds of challenges:

1. The "Blood" Challenges: These are raw energies, passions, or emotions (like anger, ambition, or desire) that can sometimes cause harm if left unchecked. But we don't have to destroy them. Like blood in the meat, these energies can be "salted" and refined. We can channel our anger into a passion for justice. We can channel our ambition into helping others. These parts of us can be transformed.
2. The "Fat" Challenges: These are habits, relationships, or behaviors that are fundamentally toxic or harmful. There is no way to "refine" a dishonest habit or a highly toxic relationship. You can't salt it to make it healthy. In these cases, the Talmud's advice is clear: you have to roll up your sleeves, do the hard work of scraping, and cut it out of your life entirely.

Recognizing which of our struggles need transformation (salting) and which need boundaries (cutting out) is a key part of emotional and spiritual maturity.

Insight 4: Community, Trust, and Accountability

The final part of Chullin 93a shifts from anatomy to human relationships. The sages discuss a very practical question: How do we know we can trust our local butcher?

If a butcher is supposed to remove the forbidden fats, but a customer finds a tiny piece of fat left behind, what happens?

The Talmud presents a debate. Rav Yehuda says that if a piece of fat the size of a barley grain is left behind, the butcher is held liable. Rabbi Yoḥanan says they are only liable if the fat is the size of an olive-bulk.

To resolve this, Rav Pappa explains that both are right, but they are talking about different consequences:

• If a butcher leaves an olive-bulk of fat (a larger amount), they receive a formal punishment because they committed a major legal infraction.
• But if they leave even a tiny barley grain of fat, they are removed from their job as a butcher.

Why such a harsh penalty for a mistake the size of a barley grain? Because being a food provider is a position of sacred trust. It isn’t just about the law; it is about accountability. If you are careless with the small things, you cannot be trusted with the big things.

The Rif (an eleventh-century Moroccan rabbi and legal codifier) emphasizes that the community relies on the integrity of its professionals. When we buy food, we are placing our spiritual well-being in the hands of the person who prepared it.

This is a powerful lesson in mindfulness and professionalism. How we do anything is how we do everything. Paying attention to the "barley grains" in our work—the small details, the quiet promises, the subtle moments of honesty—is what builds lasting trust in our relationships and careers.

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Apply It

Learning is wonderful, but in Jewish tradition, the ultimate goal is action. How can we take these ancient debates about anatomy and trust and turn them into a practical, daily habit?

This week, we invite you to try a simple, 60-second daily practice called The Humility Pause. You can choose one of the two options below:

Option A: The "I Don't Know" Check-In

Once a day (perhaps when you first sit down at your desk or right before dinner), take a deep breath and think about a conversation or project you are currently involved in.

• The Practice: Intentionally identify one thing about this topic that you do not know.
• The Action: If the opportunity arises, practice saying, "I don't actually know much about that, but I'd love to learn." Channel your inner Rabbi Yoḥanan! Notice how it feels to let go of the pressure to be the expert.

Option B: The Hidden Scan

Once a day, take 60 seconds to look at something you take for granted—a cup of coffee, your laptop, a clean floor, or a running sink.

• The Practice: Think about the "hidden" labor that made this moment possible. Picture the person who harvested the coffee beans, the plumber who fixed the pipes, or the coworker who quietly updated the spreadsheet.
• The Action: Send a quick text of gratitude, say a silent thank you, or simply appreciate the invisible effort that supports your life. This practice helps us look "under the hood" of our daily experiences with a heart of gratitude.

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Chevruta Mini

In Jewish tradition, we rarely study alone. We study in a Chevruta (a traditional Jewish study partner) relationship. Studying with a partner allows us to bounce ideas off each other, challenge our assumptions, and make the text come alive.

Here are two friendly, open-ended questions to discuss with a friend, a family member, or even to ponder in your personal journal this week:

1. On Humility: Rabbi Yoḥanan was a legendary scholar, yet he proudly stated he wasn't a butcher. In your own life, when has admitting "I don't know" actually helped you build a stronger connection with someone else? Why do you think we find it so hard to do?
2. On Transformation vs. Boundaries: We discussed how some challenges can be "salted" (transformed and channeled positively), while others must be "scraped away" (cut out entirely). How do you decide which approach to take when dealing with a difficult habit or situation in your life?

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Takeaway

Remember this: True growth begins with the humility to admit what we don't know, and the courage to look beneath the surface of our daily lives.