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    Private Eruvin

    I. ACCESS TO ERUV MATZAH

    Many people have their own private eruvin, structures that allow them to carry on Shabbos. They do this with one or more neighbors by ensuring the area is closed, whether by gates, walls or doorway-like structures — a complicated matter that requires rabbinic oversight or approval. Additionally, they keep food for two communal meals, usually matzah, in a central location.

    The Mishnah and Gemara in Eruvin (26b-36b) discuss the need for the eruv food to be accessible at the beginning of Shabbos, during the few minutes of bein ha-shmashos after sunset. Since the requirement is that the food be accessible during bein ha-shmashos, and generally speaking rabbinic prohibitions do not apply bein ha-shmashos (with some exceptions), you have to be able to access the food without violating biblical prohibitions of Shabbos.

    The Gemara (Eruvin 32b-33a) discusses cases in which you lose the key to the box or house containing the eruv matzah. If the food is kept inside a wooden box, then you can carry because breaking the box is only rabbinically prohibited. But if the food is inside a house, you cannot carry because breaking down the wall is biblically forbidden. Presumably, this means that you must have keys to your neighbor’s house, if that is where you keep the eruv matzah. If your neighbor goes away for Shabbos, you must be able to access the matzah in their home without violating a biblical prohibition. Otherwise, you cannot carry within the eruv.

    II. BREAKING INTO YOUR

    NEIGHBOR’S HOUSE

    Perhaps it is sufficient to be able to break into your neighbor’s house, whether by breaking the door’s lock or a window. Since you can do that in theory, you have access to the eruv matzah and do not have to actually break into the house. But is this rabbinically or biblically prohibited? If it is biblically prohibited, then it is insufficient to permit carrying in the eruv.

    If you destroy a door or lock in order to get into the room, is that biblically or rabbinically forbidden? Rav Yitzchak Halevi Segal (brother of the Taz, 17th cen., Poland; Responsa Mahari Halevi, no. 30) discusses whether you are allowed to ask a gentile to pick a lock on your door on Shabbos, or are we concerned that he might break it? He says that at most breaking the lock is only rabbinically forbidden and therefore you are allowed to ask a gentile to pick the lock, even if it might break.

    Rav Chaim Yosef David Azulai (Chida, 18th cen., Israel; Machazik Berachah, Orach Chaim 314:2; see also Sha’arei Teshuvah 314:2) quotes the Zera Emes who disagrees and forbids asking a gentile to pick a locked door. A synagogue’s ark was locked shut on Shabbos. The Zera Emes permits asking a gentile locksmith to open the door but only if he does not break the lock. If he has to break the lock, they should instead leave the ark closed and bring a Torah scroll from another synagogue. The Zera Emes seems to consider breaking a lock to be biblically prohibited.

    The same would seem to apply to breaking into a house any other way — you are destroying (partially) a house in a way that you will rebuild. According to Mahari Halevi, this is rabbinically forbidden and therefore does not pose an eruv problem. According to the Zera Emes, it is biblically forbidden and an eruv problem.

    III. POSSIBLE SOLUTIONS

    Rav Avraham Danzig (19th cen., Lithuania; Nishmas Adam 72:1) asks why the Gemara concerns itself with the distinction between rabbinic and biblical prohibitions. This can all be alleviated very simply. During bein ha-shmashos, you are allowed to ask a gentile to perform for you even biblically prohibited labors (Shulchan Aruch, Orach Chaim 261:1). Therefore, whether the eruv matzah is up a tree or in a locked house or anywhere, since you can ask a gentile to get it for you, the eruv must be good. Why doesn’t the Gemara give this answer? Rav Danzig struggles with this and suggests that the Sages made a special exception of asking a gentile regarding an eruv. His answer seems a bit forced.

    Perhaps we can answer with an explanation of Rav Gershon Ashkenazi (17th cen., Poland; Avodas Ha-Gershuni, no. 104). He addresses a case in which the eruv matzah is placed beyond the reach of where you are allowed to walk. Why, he asks, can you not have different people pass (in theory) the matzah hand to hand, person to person, so it will be in your reach? He explains that the rule is that you must be able to access the eruv food. If you need someone to bring it to you, then you do not really have access to it. He proves it by pointing the case of eruv food in a cemetery for a kohen. The Gemara (Eruvin 30b) has to find creative ways for a kohen to enter a cemetery (in a portable box that somehow prevents him for becoming impure). Why can’t he just ask a Yisrael to get him the eruv food from the cemetery? Rather, if he cannot access the food himself, he does not have access and therefore cannot carry in the eruv. Similarly, we can say, if you need a gentile to access the food, you do not have access yourself and cannot carry in the eruv.

    Rav Shlomo Zalman Braun (20th cen., US; She’arim Metzuyanim Ba-Halachah, Eruvin 35a) deduces from Ritva’s commentary (Eruvin 35a s.v. ba-sadeh) that while you must have access to the eruv food yourself, you can have help accessing the key. Therefore, Rav Braun allows an eruv if you can ask a gentile to bring you the key from someone’s house. Even in a place where carrying is biblically prohibited, asking a gentile to carry a key is only rabbinically forbidden.

    According to our (tentative) conclusion, if your neighbor has the eruv matzah and goes away for Shabbos, someone nearby must have an emergency key to their house. It can be you or anyone else. Since you can ask a gentile to carry the key from that other person’s house and then use the key to open your neighbor’s door to access the eruv matzah, you may carry in that eruv. (As always, don’t rely on articles and ask your rabbi for guidance.)