#5421: Why Secular Israelis Still Fast on Yom Kippur

A majority of secular Israeli Jews fast on Yom Kippur. What the data say about how faith gets handed down — and how observance becomes a weapon.

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Yom Kippur is the one day where the ambient culture and the religious calendar point the same direction. Highways empty, businesses close, and a majority of Israeli Jews fast — including a substantial share of those who describe themselves as secular. For many, it's belonging rather than believing: you don't have to decide anything, you're in it whether or not you signed up.

But how does that observance actually get handed down? Research using the Longitudinal Study of Generations, tracking over 8,000 parent-child pairs across four generations, found that transmission of religious intensity depends less on the content of the faith and more on the quality of the relationship. A parent with inconsistent practice and a warm, close child transmits more than a parent with impeccable practice and a cold house. Other work identified four distinct trajectories — stable, weakening, strengthening, and returning — with the return pattern more common among children who married.

A large Australian study found religiosity is the trait most strongly inherited, but it flows through multiple channels: parents, grandparents, and peers. Grandparents can transmit something the parents dropped entirely, and peers can pull a child toward meaning the parents never modeled. Separate research found mothers and fathers transmit altruistic values through different pathways, often invisibly — kids who think they've rejected a parent's religion may still carry the ethics it produced without knowing where they came from.

The hardest thread is what happens when observance becomes a weapon of shame in difficult family systems, even when parents are less religious than they claim. The episode closes on that dynamic — and on the question of whether respect for someone's level of observance, or lack of it, is ever actually reciprocated.

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#5421: Why Secular Israelis Still Fast on Yom Kippur

Corn
Fifty-five percent. That's the share of self-described secular Israeli Jews who, according to the surveys that get run every year around this time, still fast on Yom Kippur. Not traditional, not observant, not believers in any functional sense. Secular. And they don't eat.
Herman
And it's not just fasting. The highways empty out. There's no television. Businesses close. Kids ride bicycles on the Ayalon, which is something you cannot do on any other day of the year without getting arrested.
Corn
Which is the whole paradox in one image. A country that mostly doesn't keep the rules keeps this one. And Daniel wrote in about it, so let's get into what he actually asked. He's fasting today, so he apologized in advance for the phrasing, which I'll pass along, though honestly the prompt is cleaner than half the ones he sends.
Herman
It's Yom Kippur. He gets a pass.
Corn
He does. So here's what he's asking. Two threads. First, the statistics on how religious observance actually gets handed down in families, across world faiths, not just here. What the data says about continuation and discontinuation. Second, the harder one. How differences in observance between generations produce alienation, a feeling of lost understanding. And he's specific about a particular dynamic, which I want to get right, because it's the sharpest thing in the prompt. He says that in difficult family systems, a very specific level of observance gets used as a weapon of shame. Even when the parents are less religious than they claim to be. Even when they're hypocritical about it.
Herman
That's the line that matters.
Corn
It is. And his rule of thumb, which he offers as a rule of thumb and not a sermon, is that you respect anybody's level of observance or lack of it, because it's deeply personal. But in families where religion is a core value, that respect is often not offered, and almost never reciprocated. So. Two threads. The transmission data, and the shame dynamic. Where do we start?
Herman
Start with the day itself, because the day is the reason the question exists. Yom Kippur is the Day of Atonement. It closes the ten days of repentance that open with Rosh Hashanah. Leviticus 16 and 23 lay out the observances, and the classic list is the five afflictions. No food or drink for twenty-five hours. No work. No leather shoes. No bathing. No marital relations. The day is built around teshuvah, which is repentance but literally return, vidui, which is confession, and kapparah, atonement. And the emotional peak is Ne'ilah, the closing service, right before the final shofar blast.
Corn
Twenty-five hours, not twenty-four.
Herman
Twenty-five. Sunset to nightfall the next day, and the extra hour is deliberate. It's not a rounding error.
Corn
The people who designed this understood that the last hour is where the honesty happens.
Herman
That's exactly the design. You get tired, you get hungry, the performance drops, and what's left is whatever's actually in you. So the day is engineered to strip the social layer off.
Corn
And then a country that doesn't believe in the engineering observes it anyway.
Herman
Right. And I want to be careful with the number I opened with, because the surveys vary year to year and by how the question is asked. The consistent finding is that a majority of Israeli Jews fast, including a substantial share of people who describe themselves as secular. The precise figure moves. What doesn't move is the direction.
Corn
So it's belonging, not believing.
Herman
For a lot of people, yes. It's the one day where the ambient culture and the religious calendar point the same direction, and you don't have to decide anything. You just don't eat. Your neighbors don't eat. The country doesn't eat. You're in it whether or not you signed up for it.
Corn
So the day is clear. Now let's look at what the data actually say about how this gets handed down, or doesn't.
Herman
The best single source I've seen on this is a twenty twenty-six paper in Sociology of Religion, Silverstein and colleagues, using the Longitudinal Study of Generations. Eight thousand three hundred and forty-one parent-child pairs, four generations, data running from nineteen seventy-one to twenty sixteen. And it's the family structure question that makes it useful, because they didn't just ask whether kids stay religious. They asked what predicts it.
Corn
Give me the three findings.
Herman
One. Transmission of religious intensity was weaker to Baby Boomer children than to the cohort before them. So the secularization we talk about as a general cultural drift shows up as a measurable drop at one specific generational handoff. Two. Transmission was stronger in biological and adoptive relationships than in step-relationships. Three. Transmission was stronger in emotionally close relationships than in emotionally distant ones.
Corn
That third one is the whole episode.
Herman
It's the whole episode. The strength of the hand-off is not fixed. It depends on the cohort, on the family structure, and on how close the people actually were. Which means the transmission mechanism is not the doctrine. The doctrine is the content. The mechanism is the relationship.
Corn
Say that again, because I want it to land. The thing that carries the faith across is not the quality of the faith. It's the quality of the relationship.
Herman
That's what the data say. A parent with a shallow, inconsistent practice and a warm, close kid transmits more than a parent with an impeccable practice and a cold house. The content rides on the relationship. If the relationship isn't there, the content doesn't arrive.
Corn
Which means all the energy people spend on getting the observance exactly right is energy spent on the wrong variable.
Herman
Substantially, yes. And there's a second paper that complicates the story further, which I think is important. Min, Silverstein and Gruenewald, twenty eighteen, in Research on Aging. One thousand and eighty-four parent-child pairs, followed from seventy-one to two thousand five. And they found four trajectories, not one.
Corn
Name them.
Herman
Stable similar. The child stays at the parent's level. Child weakens. Becomes less religious. Child strengthens. Becomes more religious than the parent. And child returns. Drifts away, then comes back. And the return pattern was more likely among children who married.
Corn
So the headline we all carry around, that religious parents produce less religious kids, is one of four common paths.
Herman
It's one of four. And the return path is the one that should make everyone sit up, because it's the empirical version of what the day is about. Teshuvah. Return. The data say it happens, it's not rare, and marriage is one of the things that triggers it.
Corn
The person who leaves at nineteen and comes back at thirty-four with a spouse and a kid is not a failure of transmission. They're a delayed delivery.
Herman
The Min paper frames the whole thing through individuation, which I think is the humane reading. Drifting away in your late teens and twenties is a developmental process. It's the self separating from the family. It's not a betrayal. It looks like a betrayal from inside the family, but the framework says it's a stage.
Corn
There's a third channel I want on the table, because it explains the kid who finds meaning somewhere else entirely.
Herman
Tamariz and colleagues, twenty twenty-six, PLoS ONE. Big study out of Australia. Nineteen hundred students plus four thousand parents, grandparents and friends. And they found cultural resemblance is strongest for religiosity. Stronger than for most other traits they measured. Politics, environmentalism, health behaviors were up there too, but religiosity was at the top.
Corn
So it's the trait most likely to be inherited.
Herman
Most strongly inherited, and also the one where the other channels matter most. There's clear vertical transmission from parents. But there's also indirect influence from grandparents, and horizontal influence from peers. And the traits most likely to be adopted are the ones shared by both parents and peers.
Corn
Which is the answer to the question of why a kid ends up somewhere the parents never went. The peer network is a competing transmission channel. If the parents and the peers agree, the kid absorbs it. If they disagree, the kid has a choice, and the peer channel is the one they're swimming in eight hours a day.
Herman
And the grandparent channel is the one nobody accounts for. Skip-generation influence. The grandmother who kept something the parents dropped.
Corn
Give me an example of that, because I think people hear "grandparent influence" and picture a cookie recipe.
Herman
It's usually not a cookie recipe. It's the grandmother who lights candles every Friday night and says nothing about it. No lecture, no expectation, no guilt. The parents dropped it. The kid spends one weekend a month at her apartment and watches her do it, quietly, for years. And then at twenty-six, in a city a thousand miles away, the kid starts lighting candles. Not because anyone told them to. Because it's the one memory of that apartment that has a shape.
Corn
And the parents are baffled. They spent years actively not doing that.
Herman
They spent years actively not doing it, and they transmitted it anyway, through the grandmother, by leaving the kid in her orbit. The trait skipped a generation because the relationship skipped a generation.
Corn
So the parent who dropped the practice isn't out of the chain. They're just the middle link.
Herman
You can't opt out of being a link. You can only decide what you pass along and what you leave to someone else to pass along.
Corn
There's a fourth piece, and this one is the one that made me put the pen down.
Herman
Lee, Silverstein and colleagues, twenty twenty-six, Journal of Family Psychology. Twenty twenty-one, twenty twenty-two data from the same longitudinal study. A hundred and forty-nine families. And they found mothers and fathers transmit altruistic values through different pathways. Mothers mainly by fostering the child's own religiosity. Fathers by transmitting their religiously formed values, often invisibly.
Corn
Invisibly is the word.
Herman
Invisibly. The kids don't see it happening. They think they've rejected the father's religion entirely, and they've kept the ethics the father's religion produced, and they don't know where the ethics came from. And the paper names a contemporary shift they call the decoupling of religion from prosociality. Younger adults hold strong prosocial values without religion attached.
Corn
So the kid who volunteers, donates, shows up for the neighbor, has a fully formed moral system, and no idea that the shape of it came out of a house they think they walked away from.
Herman
And that's a specific kind of lost understanding. It's not that the generations disagree. It's that one generation doesn't know it's still carrying the other one.
Corn
Which raises the question of whether that's a loss at all. If the ethics survived and the doctrine didn't, did anything actually get lost?
Herman
Something got lost, and it's not the ethics. It's the attribution. The kid can't say thank you, because they don't know there's anything to thank. And the parent can't hear thank you, because the kid doesn't know there's anything to say it for. Both people are carrying the same thing and neither one knows the other is holding it.
Corn
That's a loneliness, not a disagreement.
Herman
It's a loneliness. And it's the quietest version of the whole problem, because nobody's fighting. There's just a wire that got cut and neither end knows it.
Corn
So we know the transmission is fragile and depends on the relationship. But what happens when it goes wrong, when the observance itself becomes a weapon?
Herman
Then you get shame, and there's a paper on this that I think is the emotional center of the whole topic. Pulakos, nineteen ninety-six, Journal of Clinical Psychology. She looked at adults' shame and correlated it with their perceived childhood family environment, using the Family Environment Scale. And higher shame correlated with lower scores on cohesion, expressiveness, intellectual-cultural orientation, moral-religious emphasis, and organization. And higher scores on conflict.
Corn
So the shamiest adults came from homes that were cold, disorganized, conflictual, and low on moral-religious emphasis.
Herman
Low on moral-religious emphasis. That's the finding that breaks the stereotype. The intuition is that strict religious upbringing produces shame. What this data says is that a home with low genuine moral-religious emphasis, combined with high conflict, is where the shame concentrates. Not the consistent observant home. Not the consistent secular home. The inconsistent one. The one that talks the talk and doesn't walk it.
Corn
Which is exactly what Daniel described. Parents who are less religious than they present, using observance as the club.
Herman
Exactly that. The hypocrisy is the mechanism. If the standard is real and you fail it, you feel guilt, which is about the act. If the standard is a performance and you're punished by it anyway, you feel shame, which is about the self. And shame is the one that doesn't resolve, because there's no actual offense to atone for. You can't fix it. You can only carry it.
Corn
That's the difference between guilt and shame in one sentence, and it's the reason the dynamic Daniel describes is so corrosive. You can't confess your way out of a charge that was never specified.
Herman
And there's a vocabulary for this now. The moral injury literature, the Moral Injury Symptom Scales, originally built for veterans and healthcare workers, includes dimensions of religious struggle, loss of religious or spiritual faith, shame, self-condemnation, and loss of trust. And those frameworks are increasingly applied to religious and spiritual betrayal. When a trusted authority, and the family is the first trusted authority, uses faith in a way that wounds instead of heals.
Corn
So what Daniel's describing isn't a family quirk. It's a recognized injury with a measurement scale.
Herman
It's a recognized injury. And there's a cross-faith parallel that maps onto it almost exactly, which I want to bring in because it takes the question out of the Jewish frame. Chentli and colleagues, twenty thirteen, a study of Ramadan fasting in Algeria. And the finding is blunt. Not fasting is considered a sin and shameful. And people with diabetes, people for whom fasting is medically contraindicated, fast anyway. Because of family habit, solidarity, and what the paper calls the desire to appear normal.
Corn
They're damaging their bodies to avoid a look from a relative.
Herman
They're damaging their bodies to avoid a look from a relative. And that's the same mechanism as Yom Kippur, running in a different religion on a different calendar. The communal norm doesn't need a believer. It just needs a witness.
Corn
Which is the thing that makes the secular Israeli who fasts legible. He's not fasting for God. He's fasting because everyone will know.
Herman
And there's a softer version of that, which is that he's fasting because he wants to be inside the thing. Both are true at once. The shame version and the belonging version run on the same wire. Which is why the day is so charged for people who've left. You can't opt out without it being visible.
Corn
You can't opt out quietly. That's the part that does the damage.
Herman
Right. There's no private exit.
Corn
So take me to the other side of it. What actually helps? Because Daniel's rule of thumb, respect anyone's level of observance or lack of it, is easy to say and I want to know if there's evidence behind it.
Herman
There's strong evidence behind it, and it's one of the more striking findings I've come across. Captari and colleagues, twenty eighteen, a meta-analysis across ninety-seven studies, over seven thousand participants. Therapy that respects and integrates a client's own religious or spiritual values outperformed both no-treatment and non-tailored secular therapy. On psychological functioning and on spiritual functioning.
Corn
So meeting someone inside their own frame beats meeting them in a neutral frame.
Herman
It beats it measurably. Which means the neutral, secular, we-don't-talk-about-religion approach isn't neutral. It's less effective. And the frame-respecting approach isn't a concession. It's the treatment.
Corn
Which is the clinical version of Daniel's rule of thumb. Respect isn't just polite. It's the thing that works.
Herman
It's the thing that works. And there's a model for how to build it, out of an Israeli clinical training program. They deliberately bring religious, secular, Ultra-Orthodox, Muslim, and immigrant trainees together. And the sequence is specific. First familiarity. Just being in the room with each other. Then what they call productive discomfort. Having people sit with the tensions between their identities, on purpose, with structure.
Corn
Familiarity first, then the hard part.
Herman
Familiarity first. You don't start with the argument. You start with the person, and then you introduce the friction. And the reason that matters for families is that most families do it backwards. They lead with the friction and never build the familiarity.
Corn
So the family that argues about observance at every meal is doing the productive discomfort without the familiarity underneath it. Which means it's not productive. It's just discomfort.
Herman
It's just discomfort. And it compounds. Every argument without a relationship underneath it makes the next one worse, because now there's a history. The training program gets this. Families mostly don't.
Corn
And the last piece, the one that complicates the whole picture.
Herman
Dilmaghani, twenty eighteen, Canadian data. Both the highly religious and the secularized reported excellent mental health more often than the middle group, the average-religiosity people. But both extremes also reported poor mental health more often. So the extremes are more variable. The settled middle is the least settled.
Corn
Which means you can't romanticize either pole. The devout and the atheist both have a clear floor to stand on. The person who's half in is standing on nothing.
Herman
That's the person the shame dynamic finds easiest. The one who hasn't decided.
Corn
A 1974 Ford LTD. Bought it for four hundred dollars.
Corn
Sorry, Hilbert, go ahead.

Hilbert: I was a shammash at a Conservative shul for two years. Caretaker. It came with a small apartment above the social hall and I was between things. Locking up, setting the timers, fixing the furnace. This was in a neighborhood that was mostly secular by then. The shul was the last one standing.

Hilbert: The year I'm talking about, a member's son showed up on Yom Kippur. Grown man, forty-something. Stood at the back. Didn't pray. Didn't fast. He drank a bottle of water in the parking lot, standing next to his car, and then came in and stood in the doorway for the whole Musaf service. His mother had died that spring. He wanted to be in the building.

Hilbert: Somebody on the board wanted him asked to leave. There was a conversation about it. I was the one who had to go tell the rabbi what the son was doing, because the rabbi hadn't noticed and the board wanted a ruling.
Corn
What did the rabbi say?

Hilbert: He said leave him alone. Then he went back to the service. That was the whole ruling.

Hilbert: But here's the part I keep thinking about. The son drank the water outside. In the parking lot. He didn't want to offend anybody. He didn't believe a word of it, and he still walked out to the lot to take a drink so nobody would see him do it. He was more careful with that room than the room was with him.
Herman
That's the parking lot detail. He kept the norm he'd already rejected.

Hilbert: He was raised right. Just not in the way they meant.

Hilbert: I've seen that more than once. People who don't believe any of it and show up anyway, because the building is where their dead are. The board's instinct was to police his observance. It missed the point entirely. He wasn't rejecting anything. He was grieving.
Corn
The thing that gets me is that the building was the only place his grief had somewhere to go.

Hilbert: That's what it was. Anyway. I've got a thing booked at six.
Corn
That story about the son in the parking lot. That's the whole thing, isn't it. He kept the rule he'd already stopped believing in, out of care for people who wouldn't have extended the same care back.
Herman
It's the transmission data in a single image. The relationship carried something the belief didn't. His mother is gone, the faith is gone, and the courtesy is still there, standing in a parking lot with a bottle of water.
Corn
The board wanted him removed. Which is the shame dynamic in its purest form. The room he was grieving in tried to police his observance, and the only person who got it right was the rabbi, who said one sentence and went back to work.
Herman
One sentence. That's the whole intervention. Not a ruling, not a policy, not a conversation with the board. Just leave him alone.
Corn
Because the rabbi understood something the board didn't. You don't get to decide how somebody else mourns. And the son wasn't there for the service. He was there for the room.
Herman
He was there for the room. And the room almost threw him out.
Corn
Here's the open question I want to leave with. If transmission depends on emotional closeness more than doctrine, and the closeness is already damaged, what do you do with that? Can respect be rebuilt in a family where observance was the weapon, or can it only be mourned?
Herman
I don't have an answer to that. The research tells you the mechanism. It doesn't tell you how to repair one that broke thirty years ago.
Corn
The Yom Kippur paradox, the secular country that shuts down, may get rarer as the younger cohorts secularize further. Or it may get more precious. The last shared ritual in a landscape that's coming apart.
Herman
Either way, Daniel's rule of thumb is the right one, and it's harder to practice than to say. Respect anyone's level of observance or lack of it. Especially in the families where it was never offered. The alternative, the shame, the alienation, the lost understanding, is worse.
Corn
Thanks as always to our producer, Hilbert Flumingtop. This has been My Weird Prompts.
Herman
If you're enjoying the show, leave us a review wherever you get your podcasts. It helps.
Corn
We'll be back soon.

This episode was generated with AI assistance. Hosts Herman and Corn are AI personalities.