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Sefer Hamitzvosספר המצוות

Day 40: Negative Commandment 320

Shabbat, 25 Adar 5786 / March 14, 2026

Important Message Regarding This Lesson

The Daily Mitzvah schedule runs parallel to the daily study of 3 chapters of Maimonides' 14-volume code. There are instances when the Mitzvah is repeated a few days consecutively while the exploration of the same Mitzvah continues in the in-depth track.

Negative Commandment 320 (Digest)

Working on Shabbat

"You shall not do any manner of work"—Exodus 20:10.

We are forbidden from performing work on Shabbat.

Unabridged English Text of this Mitzvah »

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> The 320th prohibition is that we are forbidden to do melachah;) on Shabbos.

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> The source of this commandment is G‑d's statement;), ["It is Shabbos to the L‑rd, your G‑d;] do not do any melachah."

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> If the act was intentional, but the court has insufficient proof, Scripture;) specifies the punishment as kares.;) If the act was intentional, and there is sufficient proof,;) the punishment is execution by s'kilah .;) If the act was unintentional, he must bring a sin-offering.;)

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> The details of this commandment are discussed in the tractate Shabbos.

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> Footnotes

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> Although melachah is commonly translated as "work," it actually indicates any one of 39 specific activities singled out by Torah tradition. Included among the 39 are such actions as writing, carrying outside, and tying a knot, even though they do not correspond to the English word "work."

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> Shmos 20:1. Devarim 5:14.

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> Ex. 31:14.

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> See Principle 14, where the Rambam defines kares as losing one's portion in the World to Come (unless the person does teshuvah before death). See also Hilchos Teshuvah, Chapter 8, Halachah 1.

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> Literally, "the testimony was accepted." This phrase includes such requirements as prior warning of the defendant (hasra'a), testimony of at least 2 witnesses, etc. See N352.

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> Commonly translated as "stoning," it actually consisted of being thrown from a high platform. Only if the person did not die from the fall were actual stones used. See P229.

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> See P69. This offering is called a "fixed sin-offering" to distinguish it from the offering of adjustable value. See P72.

Courtesy of Chabad.org · Sefer Hamitzvot, Sichos in English

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