Orthodox Jewish Rules: The Complete Guide to How Halacha Shapes Daily Life

People ask me this all the time in the teachers' lounge: "Do you have a lot of rules?" And I always say: yes, we do. About 613 of them, if you want to be precise. But before your eyes glaze over, let me explain what that actually means for a regular Tuesday — because "613 commandments" is not the same as 613 chores you dread every morning.

I'm Chava. I grew up Hasidic in Brooklyn, went to Bais Yaakov, and I now teach fifth grade and raise a houseful of kids with my Litvish husband from Lakewood. I live these rules. So rather than give you a textbook summary, let me walk you through them the way I'd explain it to a curious parent at a school open house.

What Is Halacha, Exactly?

"Halacha" means Jewish law. The word literally means "the way" or "the path" — and that is exactly what it feels like from the inside. Not a wall of restrictions, but a path. A structure that tells you how to move through your day.

Halacha is not one book. It is a layered system:

• The Torah — the Five Books of Moses, which contains 613 commandments (mitzvot). Some are positive ("do this"), some are negative ("don't do that").
• The Talmud — the Oral Torah, compiled over centuries, which explains and debates how the commandments apply in practice.
• Later codes — works like the Rambam's Mishneh Torah and the Shulchan Aruch (literally, "the set table"), which organize all the laws in practical form. These are the books my husband has piled on his night table.
• Responsa literature (teshuvot) — rabbinic rulings on new situations as they arise. Can you use a dishwasher? What about a microwave? Those questions got answered somewhere, and the answers get incorporated into practice.

When a question comes up in daily life that isn't obvious — and plenty do — an Orthodox Jew asks their rav, their posek (decisor of law). That's not weakness. That's using the system properly. I call my rav's wife more often than I call my doctor.

Orthodox Judaism holds that this entire system — written and oral — was given by G-d at Sinai. That belief is what makes it Orthodox.

Shabbat: The Rule That Shapes the Whole Week

If I had to pick the one rule that most visibly structures Orthodox life, it's Shabbat. From Friday sundown to Saturday night (roughly 25 hours), we refrain from melacha — creative, productive labor.

The Torah lists the framework and the Talmud defines 39 categories of prohibited labor, called the 39 melachot. These come from the 39 types of work used to build the Mishkan (Tabernacle) in the desert. The principle: whatever built G-d's house, we stop doing one day a week.

In practice, this means no:

• Turning on lights or any electrical switches (electricity involves the melacha of igniting or completing a circuit)
• Cooking or baking
• Writing, erasing, drawing
• Driving
• Carrying objects in a public domain
• Using a phone, computer, or television

Shabbat observance is the most visible marker of Orthodox life. My non-Jewish neighbors know I walk everywhere on Saturday. They know the lights in my house are on a timer. One year we had a power outage and my neighbor came running to check on me because she thought something was wrong — "Chava, your lights are on a weird schedule!" That's how they know.

What it is is beautiful: a full day of prayer, family meals, learning, napping, and visiting. No one is checking email. No one is running errands. My husband is home all day. The kids are not on screens. We actually talk. That is the deal. You give up 25 hours of productivity and you get something irreplaceable back.

Kosher: The Food Rules

Kosher laws govern what Orthodox Jews eat and how food is prepared. The system has three main pillars:

What animals are permitted. Land animals must have split hooves and chew their cud — so beef, lamb, and goat are in; pork is out. Fish must have fins and scales — so salmon and tuna are in; shellfish is out. Poultry rules come from rabbinic tradition. Insects are not kosher, which is why checking leafy vegetables is serious business. (See why Orthodox Jews check their lettuce — it's not paranoia, it's a real concern.)

Meat and dairy may not be mixed. This comes from the Torah verse prohibiting cooking a kid in its mother's milk. Rabbinic law extended this to all meat and dairy combinations. So no cheeseburger, no butter on a meat dish, no cream in coffee after a meat meal. In my kitchen I have two sets of everything — dishes, pots, utensils, sponges. In my house we wait six hours after meat before eating dairy, like both of our families before us — though I have friends from German-Jewish backgrounds whose family custom is three hours. Both are valid halachic positions, and the children find the difference endlessly interesting at playdates.

Kosher certification and shechita. Meat must be slaughtered by a trained shochet (ritual slaughterer) in a specific way that minimizes the animal's suffering. Processed foods need kosher certification because manufacturing facilities can introduce non-kosher ingredients or cross-contamination. Look for a kosher symbol — an OU, OK, Star-K, Kof-K — on packaged food. My kids read the back of every cereal box. It becomes second nature.

Modesty and Relationships

This section gets the most questions from my non-Orthodox colleagues, so I'll be direct.

Tznius (modesty) in dress. Married women cover their hair — with a sheitel (wig), tichel (scarf), or hat. I wear a sheitel. Clothing covers the elbows, knees, and collarbone. Men dress modestly as well, though the standards are less specific. The principle is not shame about the body — it's about directing attention to the person rather than the physical. I tell my students: we are not hiding, we are just not advertising.

Shomer negiah. This means "guarding touch." Unmarried men and women do not touch each other — not a handshake, not a pat on the back. Married couples observe this between themselves and members of the opposite sex who are not their spouse. Why? Physical touch builds connection, and halacha reserves that connection for marriage. I know this sounds extreme to many readers. But I've watched it work in practice for decades, so I have my own perspective on it.

Yichud. A man and woman who are not married to each other may not be alone together in a closed space. This applies even in an office — if a male boss and female employee are working late, the door needs to stay open or a third party needs to be present. The rule has practical wisdom built into it.

Prayer and Blessings

Orthodox Jews pray three times daily: Shacharit in the morning, Mincha in the afternoon, Maariv at night. These correspond to the three prayer times established by Abraham, Isaac, and Jacob according to tradition. The siddur (prayer book) contains set liturgy, much of it in Hebrew, though kavanah (intention and focus) is considered as important as the words themselves.

Men are obligated in all three prayer services. Women's obligation is more nuanced — halacha recognizes that women with young children cannot always commit to fixed prayer times, so the minimum obligation is more flexible. Speaking for myself: I pray every morning. The form varies depending on how many children need breakfast simultaneously, but the intention is there.

Beyond formal prayer, halacha prescribes blessings before and after eating — specific brachos for bread, fruit, wine, other foods. My kids say a bracha before eating anything. It creates a pause, a moment of awareness that the food comes from somewhere beyond the supermarket. I actually think it's a better mindfulness practice than anything I've seen marketed in a wellness app.

Speech Ethics: Lashon Hara

This one surprises people. Lashon hara — literally "the evil tongue" — is the prohibition against speaking negatively about another person, even if what you're saying is true.

Let me repeat that: even if it's true.

It's not just don't lie. It's don't share true negative information about a person unless there is a specific halachic reason to do so (protecting someone from harm, for example). The laws are extensive and detailed, with a whole book — the Chofetz Chaim, named after its author — dedicated solely to this topic. We study it, my students study it, and we all still find it the hardest rule to keep.

A lot of what passes as "venting" or "just letting you know" in ordinary social life is technically lashon hara. The teachers' lounge is a minefield. I am telling you this from experience.

Business Ethics

Orthodox Jewish business law is its own field. The Shulchan Aruch's section on Choshen Mishpat covers contracts, damages, employer-employee relations, and more. Key principles: honest weights and measures (you may not deceive a customer about quantity or quality), full disclosure of defects in what you're selling, and timely payment of wages. Workers must be paid on time — halacha treats withholding wages as a serious violation.

There is also the prohibition on ribbis — charging or paying interest between Jews. This required creative halachic solutions for a modern banking economy, which led to the heter iska, a legal mechanism allowing business partnerships that function similarly to loans. My husband's yeshiva had a whole shiur on this.

For a deeper look, see Orthodox Jewish business ethics.

Family Purity (Taharat HaMishpacha)

I'll keep this brief and high-level because it's private but important to mention. Family purity laws govern the intimate aspects of marriage. They involve periods of separation and reunion within the marriage cycle, centered around the wife's immersion in a mikveh (a ritually prepared body of water). These laws are considered among the most sacred in halacha, and observant couples take them seriously. I will say only this: every couple I know who observes these laws describes them as one of the strongest foundations of their marriage. There is real wisdom in them, though it takes living with them to understand why.

Holidays: The Rhythm of the Year

Major Jewish holidays come with Shabbat-like work restrictions — you don't work on Rosh Hashana, Yom Kippur, the first and last days of Pesach, Shavuot, and Sukkot. That's a significant number of days off throughout the year that need to be accommodated with employers. My husband's workplace knows the Jewish calendar as well as he does at this point.

Additional holiday-specific rules include: no chametz (leavened grain) in the home during Pesach — which means a full kitchen changeover, not just putting the bread away. Building and living in a sukkah (temporary booth) during Sukkot. Fasting on Yom Kippur and a few other fast days. The holidays have their own logic and beauty, but the work restrictions are the part that most affects interaction with the outside world.

What Happens If You Break a Rule?

Not excommunication. Not being shunned. Not losing your place in the community.

The answer is teshuva — repentance and return. Halacha has a whole framework for it. You acknowledge what you did, feel genuine regret, make amends where possible (especially for interpersonal violations — you must actually apologize to the person you wronged), and resolve not to repeat it. The door is always open.

For the full picture, see what happens if an Orthodox Jew breaks the rules. The short version: we are not a religion that throws people away.

Do All Orthodox Jews Keep Every Single Rule?

Honest answer: no, and anyone who tells you otherwise is either unusually righteous or not being straight with you.

Halacha is aspirational as well as obligatory. Every Orthodox Jew is working on something. Some people are very strong on Shabbat but struggle with lashon hara. Some families are meticulous about kashrus but work on their prayer habits. The point is not perfection — the point is engagement, growth, and the understanding that these rules are binding and matter.

There are also genuine differences in stringency between Hasidic, Litvish, and Sephardic communities, and between individuals within those communities. "Chumrot" — additional stringencies beyond the letter of the law — vary widely. My husband and I navigate this in our own kitchen every day (see: the three-hours-versus-six-hours-after-meat question above).

Rules I Get Asked About Most (Rapid-Fire from the Staff Room)

• Can you shake my hand? — Depends on the person. Many Orthodox Jews follow shomer negiah and will politely decline a handshake from the opposite sex. Why Orthodox Jews don't shake hands has the full explanation.
• Why do you walk everywhere on Saturday? — No driving on Shabbat. Walking is built into the day, which is honestly not the worst thing.
• Why can't you eat at my lunch? — Kosher means I need to know where the food came from. Bringing my own food is not a judgment of yours.
• Can I call you on Friday night? — I won't answer, but you can leave a message and I'll call you back Saturday night.
• Why do married women wear wigs? — Hair covering is the rule; a sheitel is one way to do it. The irony of covering your hair with someone else's is not lost on me.

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Halacha is not a list of rules that makes life smaller. From the inside, it is the opposite — it is a structure that makes ordinary moments meaningful, that connects Tuesday breakfast to something ancient and holy, that tells you exactly who you are and where you come from no matter what country you're in. My students sometimes complain about the rules. I remind them: a fence around something means it matters. We fence in what is precious.