The 39 Melakhot: Forbidden Labors of Shabbat

The Blueprint of Rest

When the Torah commands the Jewish people to rest on Shabbat, it does not provide a detailed list of prohibited activities. Instead, the rabbis of the Talmud identified 39 categories of creative labor — known as the 39 melakhot (singular: melakhah) — that define what “work” means in the context of Shabbat observance. These categories form the backbone of Shabbat law and have shaped Jewish life for more than two thousand years.

The number is not arbitrary. The Talmud (Shabbat 73a) derives the 39 melakhot from the types of labor required to construct the Mishkan (Tabernacle) — the portable sanctuary the Israelites built in the wilderness under Moses’ direction. The Torah juxtaposes the commandment to keep Shabbat with the instructions for building the Mishkan, and the rabbis understood this juxtaposition as a teaching: the very acts of creation that built God’s dwelling place are the acts from which we rest on God’s holy day.

The 39 Categories

The melakhot are traditionally organized into groups related to different stages of production. Here they are, grouped by their connection to the Tabernacle’s construction:

Bread Production (Field to Table)

1. Choresh — Plowing
2. Zore’a — Sowing/Planting
3. Kotzer — Reaping/Harvesting
4. Me’amer — Gathering/Bundling
5. Dosh — Threshing
6. Zoreh — Winnowing
7. Borer — Selecting/Sorting
8. Tochen — Grinding
9. Merakeid — Sifting
10. Lash — Kneading
11. Ofeh/Bishul — Baking/Cooking

Fabric and Garment Production

12. Gozez — Shearing
13. Melabein — Bleaching/Washing
14. Menapetz — Combing/Carding
15. Tzove’a — Dyeing
16. Toveh — Spinning
17. Meisach — Setting up a loom (warping)
18. Oseh Shtei Batei Nirin — Making two loops (threading heddles)
19. Oreig — Weaving
20. Potze’a — Unweaving/Separating threads
21. Kosheir — Tying a knot
22. Matir — Untying a knot
23. Tofeir — Sewing
24. Kore’a — Tearing

Leather and Parchment Production

25. Tzad — Trapping
26. Shocheit — Slaughtering
27. Mafshit — Skinning
28. Me’abeid — Tanning
29. Memacheik — Smoothing/Scraping
30. Mesarteit — Scoring/Ruling lines
31. Mechateich — Cutting to size

Writing and Construction

32. Kotev — Writing
33. Mocheik — Erasing
34. Boneh — Building
35. Soter — Demolishing (for rebuilding)
36. Mechabeh — Extinguishing a fire
37. Mav’ir — Kindling a fire
38. Makeh B’Patish — Striking the final hammer blow (finishing touches)
39. Hotza’ah — Carrying in the public domain

Understanding the System

Not “Work” in the Common Sense

A critical point that confuses many newcomers to Shabbat law is that melakhah does not mean “work” in the ordinary sense of physical exertion. Carrying a heavy table across a room is not necessarily a melakhah, while carrying a tissue in one’s pocket from a private domain into a public street might be. The system is about creative, purposeful action — the kind of activity that transforms the natural world — not about physical effort.

The Talmud illustrates this with a vivid example: if a person carries a bed out of their house (strenuous but a single action), they have violated one melakhah (carrying). But if a person sits quietly and performs a sequence of actions — sorting, grinding, kneading — they may have violated several melakhot despite barely moving.

Av Melakhah and Toladot

Each of the 39 melakhot is called an av melakhah (a “father” or primary category). From each primary category, the rabbis derived toladot (“offspring” or derivative categories) — actions that share the same essential character as the primary melakhah even if they look different on the surface.

For example:

• Plowing (choresh) includes any action that prepares the ground for growing, such as digging a hole or removing stones from a field
• Writing (kotev) includes any act of creating permanent markings, which is why some authorities extend it to typing on a computer
• Cooking (bishul) includes heating any substance to change its state, which affects discussions about using hot water on Shabbat

Intentional vs. Unintentional

Jewish law distinguishes between performing a melakhah intentionally (b’meizid), unintentionally (b’shogeg), and as an unintended consequence (davar she’eino mitkaven). The severity of the violation and any resulting obligations differ significantly based on the person’s intent and awareness.

Modern Applications

Electricity

One of the most significant modern discussions involves electricity. Turning on a light switch, using a phone, or operating a computer are prohibited on Shabbat according to virtually all Orthodox authorities, though the exact melakhah involved is debated. Some say it falls under kindling a fire (mav’ir), others under building (boneh), and others under the principle of completing a circuit (makeh b’patish — the finishing blow).

This question has enormous practical implications and has led to the development of Shabbat-specific technologies: timers for lights and appliances, special “Shabbat elevators” that stop at every floor, and hot plates (blech) designed to keep food warm without triggering cooking prohibitions.

Cooking and Food Preparation

The melakhot related to food preparation — selecting, grinding, kneading, cooking — have detailed applications in the Shabbat kitchen. Food must be prepared before Shabbat or kept warm using methods that do not involve active cooking. The laws of borer (selecting) affect how one may sort food at the table, and the laws of bishul (cooking) govern the use of hot water and reheating food.

Writing and Technology

The prohibition of writing extends to any form of creating permanent or semi-permanent records. This affects the use of pens, pencils, computers, smartphones, and even certain board games that involve scoring.

The Deeper Meaning

Imitating God’s Rest

The Torah states that God created the world in six days and rested on the seventh. The 39 melakhot represent the full spectrum of human creative activity — from agriculture to textile production, from construction to writing. By ceasing from these categories of labor, Shabbat observers symbolically step back from the role of creator and acknowledge that the world belongs to God.

This is not passivity but a radical act of trust: the declaration that the world will continue without our intervention, that our value is not defined by our productivity, and that rest is not laziness but a sacred acknowledgment of limits.

Creating Sacred Time

The melakhot define Shabbat not by what one does but by what one refrains from doing. This “negative space” — the absence of creative labor — creates room for the positive experiences that fill Shabbat: prayer, study, family meals, rest, and reflection. The 39 melakhot are, in this sense, the boundaries that make Shabbat’s distinctive character possible.

Frequently Asked Questions

Why are there exactly 39 melakhot? The Talmud connects the number 39 to the number of times the word “melakhah” (work) appears in the Torah, and more directly to the types of labor needed to build the Tabernacle. The number is neither arbitrary nor symbolic — it is derived from careful textual analysis.

Is it forbidden to carry anything on Shabbat? The melakhah of carrying (hotza’ah) specifically prohibits transferring objects between a private domain and a public domain, or carrying within a public domain. Carrying within a private home is permitted. Many communities establish an eruv — a symbolic enclosure — that allows carrying within a defined area.

What happens if someone accidentally violates a melakhah? An unintentional violation (shogeg) is treated differently from an intentional one (meizid). In Temple times, an unintentional violation required a sin offering. Today, the person should recognize the error and commit to greater care in the future. Deliberate violation is a more serious matter in Jewish law.