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HomeThe Laws › Do Not Eat Chametz at the Passover Offering Meal
Commandment #478 · Negative #322

Do Not Eat Chametz at the Passover Offering Meal

לֹא תֹאכַל הַפֶּסַח חָמֵץ
Exodus 34:25 · Sabbath & Holy Days
לֹא תִשְׁחַט עַל חָמֵץ דַּם זִבְחִי
“You shall not offer the blood of my sacrifice with anything leavened, or let the sacrifice of the Feast of the Passover remain until the morning.”

The Prescribed Meal — Lamb, Matzah, and Maror

Exodus 12:8: “They shall eat the flesh that night, roasted on the fire; with unleavened bread and bitter herbs they shall eat it.” The Passover meal is not a general festive dinner to which unleavened bread is added as a side. It is a precisely prescribed meal with exactly three components: the lamb, the matzah, and the bitter herbs. Each component carries meaning — the lamb is the offering, the matzah is the bread of redemption, the maror is the memory of bitterness. Chametz has no place in this tripartite structure. Exodus 34:25 formalizes what is already implicit in the prescription: the Passover sacrifice and chametz are incompatible.

The prohibition is distinct from the general Passover chametz ban in its specificity: it addresses the actual moment of eating the Passover offering. Even if the general Passover chametz prohibition did not exist, this commandment would still prohibit eating chametz at the Passover meal. The Passover sacrifice creates its own sacred eating context, and that context is chametz-free by definition. The offering cannot be brought — or eaten — alongside the bread of Egypt.

The Seder Table — From Temple Meal to Memorial Structure

In Temple times, the Passover meal was the literal fulfillment of the Exodus prescription: the korban Pesach was slaughtered, roasted, and eaten by households and groups around the table in Jerusalem. The Seder as we know it is the rabbinic adaptation of this meal after the Temple’s destruction. The Haggadah, the four cups of wine, the symbolic foods on the Seder plate — all are built around the original Temple meal’s structure. The Passover lamb (represented by the zeroa — the shank bone) is present as a reminder; the matzah is obligatory; the maror remains.

The prohibition of commandment #478 shapes the entire Seder: the table is chametz-free not merely because of the general Passover prohibition but because the Seder table is a reenactment of the Passover meal, and chametz has no place at the Passover meal. The Seder is not simply a dinner at which unleavened bread is served — it is a structured sacred meal whose prescribed foods are matzah, maror, and the memory of the lamb. The chametz prohibition at this meal is structural, not incidental.

Two Prohibited Acts, One Verse — Slaughter and Eating

Exodus 34:25 contains two distinct prohibitions in a single verse: “You shall not offer the blood of my sacrifice with anything leavened (— the prohibition against slaughtering while chametz is present, commandment #469), or let the sacrifice of the Feast of the Passover remain until the morning” (the prohibition against leaving the sacrifice overnight). The rabbis also derive from this verse the prohibition against eating chametz at the Passover meal — the word “not with anything leavened” covering not only the slaughter moment but the eating moment.

The single verse thus yields multiple prohibitions, each addressing a different temporal stage of the Passover sacrifice: the slaughter must be performed without chametz present (#469); the sacrifice’s fat must not remain until morning (#470); the sacrifice’s meat must not remain until morning (#479); and the sacrifice may not be eaten alongside chametz (#478). The Passover sacrifice is surrounded from every angle by prohibitions that ensure its sacred context is maintained — before it, during it, and after it.

For reflection and group study
Exodus 12:8 prescribes the Passover meal precisely: lamb, matzah, and bitter herbs. The meal has an exact structure. What does this highly specific prescription — three foods, specific preparation methods — reveal about how the Torah understands the relationship between sacred meals and the events they commemorate?
The Passover meal in Temple times was eaten in Jerusalem, with the actual lamb roasted and consumed within the city walls. The rabbinic Seder preserves this meal’s structure without the Temple. What does this preservation — maintaining a meal's prescribed form across centuries without its central element (the sacrifice) — reveal about how tradition preserves meaning across historical rupture?
Exodus 34:25 yields at least two prohibitions (slaughter while chametz present, sacrifice remaining until morning) and possibly more. What does this method of deriving multiple commandments from a single verse reveal about how the rabbis understood the relationship between scriptural text and legal system?

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