Money & Mitzvot · Week 2

This week: Ribbis — why the Torah has a lot to say about your credit card

A note for parents and educators

Of all the areas where Torah intersects with personal finance, ribbis (rib-EES) — the prohibition on charging or paying interest — may be the most thoroughly legislated. We're talking hundreds of pages of responsa. Entire seforim dedicated to its application. A direct Torah prohibition repeated in three separate places in Tanach. Rishonim and Achronim arguing about edge cases stretching from medieval moneylending to 21st-century financial instruments.

And yet most Jews go through their entire financial lives without once asking: does any of this apply to me?

It does. More than you'd expect — and in more interesting ways than you'd expect.

This week, your kids will learn that the Torah isn't just regulating ancient grain loans. It's articulating a philosophy: when someone comes to you in need, your first instinct should be to help — not to extract. Understanding that logic makes the whole system make sense, even (especially) in a world of 24% APR credit cards.

📚 What's Being Taught This Week

K–6 Track

The story this week: Yosef lends his friend Binyamin $5 to buy a snack, then asks for $6 back next week. Yosef's grandmother explains why that extra dollar is a problem in Jewish law.

The lesson isn't "charging interest is greedy" — it's more precise than that. When someone needs money, the Torah says your job is to help them, not to profit from their need. This is a specific category of obligation, and it's different from regular business.

Classroom activity: "The Gemach Game" — kids set up a pretend free lending library and discover what makes a gemach (free loan society) different from a regular loan.

High School Track

The source texts this week — Vayikra 25:36-37, Shemot 22:24, Rambam Hilchot Malveh v'Loveh — establish the prohibition in detail. Students work through the distinction between ribbis d'oraita (Torah-level) and ribbis d'rabbanan (rabbinic).

Then the interesting part: the Heter Iska. When medieval Jewish merchants needed to participate in the broader economy, poskim developed a legal structure converting a loan into a business partnership — technically compliant with halacha, genuinely functional for commerce. Students analyze whether this is a loophole or a feature.

Scenarios covered: lending to a sibling at interest, whether a savings account violates ribbis, structuring a business loan between Jewish partners.

🍽 Three Questions for the Dinner Table

1. If your friend needed $20 to fix his bike and you lent it to him — would it be okay to ask for $22 back next month? Why or why not?
2. Banks charge interest on loans. Is that different from a person charging interest? What makes it different — or doesn't it?
3. If a law is technically followed but the spirit of it isn't, is that good enough? (This sets up the Heter Iska conversation perfectly.)

💳 Living It: The Adult Layer

Does my mortgage violate ribbis? Almost certainly not — and here's why. Most modern mortgages are structured (either explicitly or implicitly) on a Heter Iska model, or involve non-Jewish lenders to whom the prohibition doesn't apply between parties, or use bank-intermediated structures that change the halachic relationship. Major poskim — including Rav Moshe Feinstein — have ruled that standard bank mortgages are permissible. But you should know why, not just that it's fine.

Lending money to a family member at interest? This is where it gets real. If your brother-in-law asks to borrow $10,000 and you say "I'll lend it at 5%," that's potentially a Torah-level ribbis violation — between Jews, no Heter Iska in place, explicit interest on a personal loan. Many families stumble into this without realizing it. A simple Heter Iska — your rabbi keeps one on file, and most law firms that handle frum clients have a template — resolves it entirely.

What about a gemach? A gemach (גמ״ח — short for gemilut chasadim, acts of kindness) is a free loan fund — no interest, returned in kind. This is exactly what the Torah envisions when it says to lend to those in need. Supporting or participating in a gemach is, halachically speaking, one of the highest expressions of what money can do.

Reflective question: Think about the last time someone in your family or community needed financial help. What was your first instinct — to help, to figure out terms, or to stay out of it? What does that instinct say about how you've internalized this value?

Money & Mitzvot · Week 2 · Ribbis · Next week: Tzedakah — obligation, not charity