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    Eruvin 2b

    Chapter 1 - Mavoi

    גם: עירובין דף ב׳ ע״ב, פרק א׳ מבוי

    English translation - Eruvin 2b

    Translation: William Davidson Edition - English. Read alongside the Aramaic below; numbers match the passages of the daf.

    1that instance of the term Temple is not written with regard to the Tabernacle; rather, it is written with regard to the ark and the other sacred objects in the Tabernacle, as the sons of Kehat carried only the sacred vessels and not the Tabernacle itself. Rather, it is derived from here: “And let them make Me a Temple that I may dwell among them” (Exodus 25:8), where the reference is to the Tabernacle.

    2The Gemara asks: Both according to the opinion of the Rabbis and according to the opinion of Rabbi Yehuda, let them derive the maximum width of a doorway from the doorway of the gate of the courtyard of the Tabernacle. As it is written: “The length of the courtyard shall be one hundred cubits and the breadth fifty everywhere, and the height five cubits” (Exodus 27:18). And it is written: “The hangings on one side of the gate shall be fifteen cubits; their pillars three and their sockets three” (Exodus 27:14). And it is written: “And for the other side of the court gate, on this hand and on that hand, were hangings of fifteen cubits; their pillars three and their sockets three” (Exodus 38:15). If the hangings on both sides of the gate covered thirty of the courtyard’s total width of fifty cubits, apparently, the gate of the courtyard was twenty cubits wide and five cubits high. Therefore, just as there, with regard to the Tabernacle, an entrance five cubits high by twenty cubits wide is considered a doorway, so too here, with regard to the halakhot of eiruv , an entrance five cubits high by twenty cubits wide should be considered a doorway.

    3The Gemara rejects this assertion: There is no proof from there, as that entrance is called the doorway of the gate of the courtyard, but it is not called a doorway, unmodified. Consequently, the dimensions of a doorway mentioned without qualification cannot be derived from that doorway.

    4The Gemara offers an alternative answer: And if you wish, say instead that when it is written: “The hangings on one side of the gate shall be fifteen cubits,” it is referring to the height of the hangings. The width of the hangings, however, is not specified in the Torah at all, and therefore the width of the doorway of the gate of the courtyard is unknown.

    5The Gemara raises an objection: Could it be that the height of the hangings was fifteen cubits? Isn’t it written explicitly in the verse: “And the height five cubits”? The Gemara answers: The verse is stating that the height of the hangings was five cubits, measured from the edge of the altar and above. The altar itself was ten cubits high, while the hangings of the courtyard were fifteen cubits high, five cubits higher than the altar.

    6The Gemara asks: Did Rabbi Yehuda actually derive his opinion from the doorway of the Entrance Hall? But didn’t we learn in the mishna that if the entrance to an alleyway is wider than ten cubits, one must diminish its width? And Rabbi Yehuda does not dispute this ruling. Wasn’t the doorway of the Entrance Hall wider than ten cubits?

    7Abaye said: In fact, Rabbi Yehuda disagrees with the unattributed opinion of the first tanna in a baraita . As it was taught in a baraita : If the entrance to an alleyway is wider than ten cubits, he must diminish its width; Rabbi Yehuda disagrees and says: He need not diminish it.

    8The Gemara asks further: If so, let him disagree in the mishna. Why is Rabbi Yehuda’s dispute cited only in the baraita , and not in the mishna? The Gemara answers: Rabbi Yehuda disagrees in the mishna with regard to an entrance’s height, but the same applies to its width. His statement: He need not reduce it, is referring both to the entrance’s height and to its width.

    9The Gemara poses a question: And still, is it possible that Rabbi Yehuda derived his opinion from the doorway of the Entrance Hall? Wasn’t it taught in a baraita : With regard to a cross beam spanning the entrance to an alleyway that is higher than twenty cubits, one must diminish its height; and Rabbi Yehuda deems it fit up to forty and fifty cubits. And in a different baraita , bar Kappara taught the opinion of Rabbi Yehuda: It is fit up to a hundred cubits.

    10The Gemara clarifies its question: Granted, according to bar Kappara, the phrase: Up to a hundred, can be understood as an exaggeration, not as an exact number. All that Rabbi Yehuda meant to say is that it is permitted to carry in the alleyway even if the cross beam is significantly higher than twenty cubits. However, according to the opinion of Rav Yehuda in the name of Rav, what exaggeration is there? He certainly meant precisely what he said. Granted, with regard to forty cubits, Rabbi Yehuda derived it from the doorway of the Entrance Hall. However, with regard to fifty cubits, from where does he derive it? Apparently, Rabbi Yehuda did not derive the dimensions of an entrance from the doorway of the Entrance Hall. He derived them from a different source.

    11Rav Ḥisda said: It was this baraita that misled Rav and led him to explain that Rabbi Yehuda derived the measurements of an entrance from the doorway of the Entrance Hall. As it was taught in a baraita : With regard to a cross beam spanning the entrance to an alleyway that is higher than twenty cubits, higher than the doorway of the Sanctuary, one must diminish its height. Rav maintains: From the fact that the Rabbis derived the dimensions of an entrance from the doorway of the Sanctuary, Rabbi Yehuda must have derived those dimensions from the doorway of the Entrance Hall. But that is not so. Rather, Rabbi Yehuda derived the dimensions of an entrance from the entrance of kings, whose regular practice was to erect their entrances exceedingly high and wide.

    12The Gemara asks: And, according to the Rabbis, if they derived their opinion from the doorway of the Sanctuary, let them require doors in order to render an alleyway fit for one to carry within it, just as there were doors in the Sanctuary. Why then did we learn in the mishna: With regard to the method of rendering an alleyway fit for carrying within it, Beit Shammai say: Both a side post placed adjacent to one of the sides of the alleyway’s entrance and a cross beam over the entrance to the alleyway are required. And Beit Hillel say: Either a side post or a cross beam is sufficient. However, not even according to the more stringent opinion of Beit Shammai are doors required.

    13The Gemara answers: The Sanctuary doors were made solely for the purpose of privacy, but served no practical function. The doorway of the Sanctuary did not require doors to be considered an entrance. It was a full-fledged entrance even without them.

    14The Gemara raises another question: But if so, that the Rabbis derive their opinion from the entrance to the Sanctuary, the form of a doorway, i.e., two vertical posts on the two sides, with a horizontal cross beam spanning the space between them, should not be effective if the alleyway is more than ten cubits wide, as the Sanctuary had the form of a doorway, and even so, it was no more than ten cubits wide. Why then did we learn in the mishna: If the entrance has the form of a doorway, then even if it is wider than ten cubits, he need not diminish its width?

    15The Gemara answers: As that is the reason only according to Rav, who holds that the Rabbis derive their opinion from the doorway of the Sanctuary. Didn’t Rav Yehuda teach this mishna to Ḥiyya bar Rav before Rav, saying that if the entrance had the form of a doorway he need not diminish it, and Rav said to him to teach a different version: He must diminish it. Apparently, according to Rav himself, the form of a doorway does not render it permitted to carry within the alleyway if its entrance is wider than the doorway of the Sanctuary, and therefore the question about the form of a doorway poses no difficulty to his opinion.

    16The Gemara raises an additional difficulty: However, if that is so,

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    Rashi

    "That [verse] is written regarding the Ark" - which is the burden of the sons of Kehath, and because it is holier than the other burdens, it is called "Mikdash" (Sanctuary).

    "They learn from the doorway of the courtyard gate" - He objects regarding the width, as we learned in the Mishnah, "and the width [must be] less than ten cubits." Now, we find the doorway of the courtyard, which was twenty [cubits] wide, and it is called "doorway," as it is written, "and the curtains of the courtyard, and the screen for the doorway of the courtyard gate," written in the section of Naso. But regarding the height, to disqualify [a doorway] with a height greater than five cubits, he cannot object, for we find the doorway of the Temple, which was twenty [cubits] high, and it calls it "doorway."

    The width of the courtyard of the Tabernacle was 50 cubits - Now, as for what is written "fifty by fifty" in the second chapter (Exodus 27:18), it explains it: and its entrance was in the middle of its width, and they closed it with curtains, 15 cubits on this side of the entrance and 15 cubits on that side of the entrance, leaving 20 cubits of width in the middle, as it is written, "fifteen cubits of curtains for the shoulder," and "shoulder" is the side of the entrance.

    "Just as below" - [meaning] a height of five [cubits], for all the curtains of the courtyard surrounding [the Tabernacle] were no taller than five [cubits], as it is written (Exodus 27:18), "and its height was five cubits."

    "It is regarding its height that it is written" - that the height of the eastern curtains on both sides of the entrance was 15 cubits more than the other curtains of the courtyard, which had a height of 20 [cubits], and no measurement was given for the width.

    "From the edge of the curtains and downward" - Below those 15 [cubits] that were added on this side and that side of the entrance, there were another five [cubits] of height, equal to the other curtains, and upon them were added 15 in height on both sides of the entrance, making them 20 [cubits high]. Another interpretation: "It is regarding its height that it is written," that the height of all the curtains of the courtyard surrounding [the Tabernacle] was 15 cubits, but we did not learn a measurement for the width of the entrance. And according to this interpretation, we read in the conclusion, "that [verse] is from the edge of the altar and upward," since the altar's height was ten [cubits], and the curtains were five [cubits] higher than it, making them 15, so that a priest would not be standing on it with the [sacrificial] service in his hand, and all the people seeing him from outside. And I have heard both [interpretations], and this [second one] is the main one, and so it is explicitly stated in Zevachim in the chapter "Kodshei Kodashim" (Zevachim 59a). And the one who explains according to the first interpretation is mistaken, for he assumed that the one who objects, "Let us learn from the doorway of the courtyard gate," objects regarding the height, to disqualify a height greater than five cubits. And for this reason, he turned back to establish the courtyard gate at a height of twenty [cubits].

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    עירובין ב עמוד ב

    1ההוא בארון כתיב״. אלא מהכא: (שמות כה, ח) ״ועשו לי מקדש ושכנתי בתוכם״.״

    2בין לרבנן ובין לרבי יהודה לילפו מפתח שער החצר, דכתיב: ״(שמות כז״, יח) ״אורך החצר מאה באמה ורחב חמשים בחמשים וקומה חמש אמות״, וכתיב: ״(שמות כז״, יד) ״וחמש עשרה אמה קלעים לכתף״, וכתיב: ״(שמות לח״, טו) ״ולכתף השנית מזה ומזה לשער החצר קלעים חמש עשרה אמה״, מה להלן חמש ברוחב עשרים, אף כאן חמש ברוחב עשרים!

    3״פתח שער החצר״ איקרי, פתח סתמא לא איקרי.

    4ואיבעית אימא, כי כתיב: ״קלעים חמש עשרה אמה לכתף״ בגובהה הוא דכתיב.

    5גובהה?! והא כתיב: ״וקומה חמש אמות״! ההוא משפת מזבח ולמעלה.

    6ורבי יהודה מפתחו של אולם גמר? והא תנן: והרחב מעשר אמות ימעט, ולא פליג ר' יהודה!

    7אמר אביי: פליג בברייתא, דתניא: והרחב מי' אמות ימעט, ר' יהודה אומר: אינו צריך למעט.

    8וליפלוג במתני' פליג בגובהה, וה"ה לרחבה.

    9ואכתי, ר' יהודה מפתחו של אולם גמר? והתניא: מבוי שהוא גבוה מכ' אמה ימעט, ורבי יהודה מכשיר עד מ' ונ' אמה. ותני בר קפרא: עד מאה.

    10בשלמא לבר קפרא גוזמא. אלא לרב יהודה מאי גוזמא? בשלמא לרבי יהודה ארבעים גמר מפתחו של אולם, אלא נ' מנא ליה?

    11א"ר חסדא: הא מתניתא אטעיתיה לרב, דתניא: מבוי שהוא גבוה מכ' אמה, יותר מפתחו של היכל ימעט. הוא סבר: מדרבנן מפתחו של היכל גמרי, רבי יהודה מפתחו של אולם גמר. ולא היא, ר' יהודה מפתחא דמלכין גמר.

    12ורבנן, אי מפתחו של היכל גמירי ליבעו דלתות כהיכל, אלמה תנן: הכשר מבוי, ב"ש אומרים: לחי וקורה, וב"ה אומרים: לחי או קורה!

    13דלתות היכל לצניעות בעלמא הוא דעבידן.

    14אלא מעתה, לא תיהני ליה צורת הפתח, דהא היכל צורת הפתח הויא לו, אפילו הכי עשר אמות הוא דרויח. אלמה תנן: אם יש לו צורת הפתח, אע"פ שרחב מעשר אמות אינו צריך למעט!

    15מידי הוא טעמא אלא לרב, הא מתני ליה רב יהודה לחייא בר רב קמיה דרב: אינו צריך למעט. וא"ל אתנייה ״צריך למעט״.

    16אלא מעתה׃

    Tosafot

    The Tosafot's Question:

    "But now, wouldn't the 'form of a doorway' not benefit him?" - If having a specific type of opening is enough to make the Eruv valid (as implied by the Gemara), then why wouldn't simply shaping the opening like a doorway always work?

    The Tosafot's Answer:

    "But he doesn't ask, 'Wouldn't doors benefit him?'" - The Gemara doesn't even bother asking the more obvious question: Why aren't doors enough to create a valid Eruv?

    "Because it's obvious, since it has doors and they are locked, it's like an upper partition." - Having doors that can be locked is clearly sufficient, as it functions as a wall and effectively encloses the space.

    "It's also not relevant to ask, 'Doesn't it require the form of a doorway?'" - There's no need to even bring up the question of whether a doorway shape is necessary.

    "Because the form of a doorway is only for aesthetic purposes." - The shape of a doorway is merely decorative; it has no inherent halachic (Jewish legal) significance in creating an enclosed space.

    "But this question is well-placed, 'Wouldn't the form of a doorway benefit him?'" - The Tosafot clarifies that the original question about the doorway shape is valid in this specific case.

    "Because if it was considered a doorway even when very large, by means of the form of a doorway, he could make it equal to a hall." - Here's the crux of the issue: If any large opening could be considered a valid "doorway" just by shaping it like one, people could make huge openings and still claim it's a valid Eruv, which is not allowed. The Eruv rules have size limits for openings.

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    Rav Nissim Gaon

    והכת' וקומה חמש אמות ההוא משפת מזבח ולמעלה וזה גם הוא מן העיקר שאמרוהו בפר' המצניע (שבת לב) דכת' אשר על המשכן ועל המזבח מקיש מזבח למשכן מה משכן עשר אמות אף מזבח עשר אמות וכבר הזכרנו בפר' המצניע הדברים שנאמרו במסכ' זבחים ואין אנו טורחין לחזור בהן:

    Babylonian Talmud · folio map

    Eruvin 2b

    Eruvin 2b. The full printed text of this folio side - 16 numbered segments, about 305 words - with the classic commentaries printed on the page.

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    Source: he.wikisource.org (Wikisource Talmud Bavli) · License: CC-BY-SA

    Edition: Wikisource Talmud Bavli · Wording checked against the source on 07/09/2026