Fire on Shabbat

The [number of] principal Melakhot is forty minus one. [The forbidden Melakhot are]: Sowing, plowing, reaping, binding sheaves, threshing, winnowing, sorting, grinding, sifting, kneading, baking, shearing wool, whitening it, combing it, dyeing it, spinning, weaving, making two loops, weaving two threads, separating two threads, tying [a knot], untying [a knot], sewing two stitches, tearing for the purpose of sewing two stitches, hunting a deer, slaughtering it, skinning it, salting it, curing its hide, scraping it, cutting it, writing two letters, erasing for the purpose of writing two letters, building, demolishing, extinguishing a flame, lighting a flame, striking with a hammer, carrying from one domain to another. These are the principal Melakhot - [they number] forty minus one.

One may lower the Passover offering into the oven towards dusk [on Friday]. And [the priests in the Temple] may kindle the fire in the hearth-room [on Friday], but outside [the Temple a fire may be lit] only if there is sufficient time for the fire to ignite the greater part of the wood. Rabbi Yehudah says: With regard to coals [it is acceptable] if any part of them becomes ignited [before Shabbat].

[If] one extinguishes the lamp because he is afraid of non-Jews, of bandits, of an evil spirit, or that the sick may sleep, he is exempt; but [if his intention is] to preserve the lamp, to preserve the oil, or to preserve the wick, he is liable. Rabbi Yose exempts in all [these cases] except the [act preserving the wick], because he thereby creates a coal.

We learned the following in the mishna: And one may light the fire in the bonfire of the Chamber of the Hearth in the Temple on Shabbat eve adjacent to nightfall and allow the fire to spread afterward throughout the entire bonfire. The Gemara asks: From where are these matters that doing so is permitted, derived? Rav Huna said, as it is stated: “You shall kindle no fire in all of your habitations on the day of Shabbat” (Exodus 35:3). The Gemara infers: “In all of your habitations,” the dwelling places of the Jewish people, you may not kindle fire, but you may kindle fire on Shabbat in the bonfire of the Chamber of the Hearth, which is in the Temple. Rav Ḥisda objects: If so, if that is the source for the fact that kindling the fire is permitted on Shabbat eve at nightfall, it should also be permitted to kindle it even on Shabbat itself. Why kindle the fire while it is still day? Rather, Rav Ḥisda said, it should be understood as follows: When the verse came, it came to permit burning the limbs and fats of the sacrifices on the altar, even on Shabbat. Lighting the bonfire of the Chamber of the Hearth was not permitted on Shabbat itself, since it is not part of the Temple service. It was kindled merely for the benefit of the priests. The fact that there was no concern about lighting the bonfire on Shabbat eve at nightfall is because the priests are vigilant with regard to mitzvot, and they will certainly not come to stoke the coals.

We also learned in the mishna that in the outlying areas one may not light a bonfire on Shabbat eve at nightfall unless there is sufficient time for the fire to take hold in most of the bonfire. The Gemara asks about this: What is meant by the measure of most of it? Rav said: Most of each and every one of the branches. And Shmuel said: It is sufficient if the branches are sufficiently lit so that they will not say to each other: Bring thinner branches, which are easier to kindle, and we will place them beneath the existing branches to accelerate their burning. Rav Ḥiyya taught a baraita to support Shmuel, from a halakha that was stated with regard to the Temple candelabrum. The baraita said that it must be lit to the point that the flame will ascend on its own and not that the flame will ascend due to something else. In a place where kindling is required, it is sufficient to ensure that the fire burns on its own (Tosafot).

We learned in the mishna: And anyone who performs labors destructively on Shabbat is exempt. Rabbi Abbahu taught this baraita before Rabbi Yoḥanan: Anyone who performs labors destructively on Shabbat is exempt, except for one who inflicts a wound or kindles a fire. Rabbi Yoḥanan said to him: Go teach that outside. This baraita is not fit for discussion in the study hall. The opinion that deems one liable for inflicting a wound or kindling a fire on Shabbat is not an accepted teaching and should be ignored. And if you want to say that it is a legitimate teaching, one who inflicts a wound would only be liable in a case where he needed the blood to give to his dog, and one who kindles a fire would only be liable in a case where he needs its ashes.

Do not deal basely with your countrymen. Do not profit by the blood of your fellow: I am the LORD.