The shul of Mata Mehasya: When can a synagogue be torn down?

Rav Ḥisda says: A person may not demolish a synagogue until he first builds another synagogue to take its place. There are those who say that the reason for this halakha is due to potential negligence, lest he fail to build a new structure after the old one has been razed. And there are those who say that the reason for this halakha is due to the disruption of prayer, for in the meantime there will be nowhere to pray.

The Gemara asks: What is the practical difference between these two explanations? The Gemara answers that there is a difference between them in a situation where there is another synagogue. Even though the community has an alternative place to pray there is still a concern that the new synagogue will never get built. It is related that Mareimar and Mar Zutra demolished and built a summer synagogue in the winter, and, in like manner, they built a winter synagogue in the summer, so that the community would never be left without a synagogue.

Ravina said to Rav Ashi: What is the halakha if money for the construction of a new synagogue has already been collected and it rests before us for that purpose? Is it then permitted to demolish the old synagogue before building the new one? Rav Ashi said to him: Even if the money has been collected there is still concern that perhaps an opportunity for redeeming captives will present itself, and they will hand over the money for that urgent requirement, and the community will be left without a synagogue.

Ravina continues: What is the halakha if the bricks to be used for the construction of the new synagogue are piled up, the boards are prepared, and the beams are ready? Is it permitted to demolish the old synagogue before building the new one? Rav Ashi said to him: Even so, sometimes an opportunity for redeeming captives will present itself, and they will sell the building materials and hand over the proceeds for this purpose. Ravina raises an objection: If so, that is, if you are concerned that they will sell the materials to redeem captives, then even in a case where they already built the synagogue there should be a concern that they might come to sell the structure for that purpose, and therefore one should never be permitted to destroy an old synagogue. Rav Ashi said to him: People do not sell their residences.

The Gemara comments: And we said that an old synagogue must not be razed before its replacement is built only in a case where cracks are not seen in the old synagogue. But if cracks are seen they may first demolish the old synagogue and then build the new one. This is like the incident involving Rav Ashi, who saw cracks in the synagogue in his town of Mata Meḥasya and immediately demolished it. He then brought his bed in there, to the building site, so that there should be no delays in the construction, as he himself required shelter from the rain, and he did not remove his bed from there until they finished building the synagogue and even affixed drainpipes to the structure.

The Gemara asks: How could Bava ben Buta have advised Herod to raze the Temple and build another in its place, as will be described later? But doesn’t Rav Ḥisda say that a person must not demolish a synagogue unless he first builds another synagogue to take its place? The Gemara answers: If you wish, say that he saw cracks in the old Temple structure. And if you wish, say that actions taken by the government are different, as the government does not go back on its decisions. Therefore, there is no need to be concerned about negligence, as there is in the case of ordinary people. As Shmuel says: If the government says it will uproot mountains, it will uproot mountains and not retract its word.

Rava bar Meḥasseya said that Rav Ḥama bar Gurya said that Rav said: Any city whose roofs are higher than the synagogue will ultimately be destroyed because of the contempt shown the synagogue. Allusion to this is from that which is stated: “To uplift the house of our God and restore its ruins” (Ezra 9:9). The house that is devoted to God needs to be elevated above the other houses of the city. The Gemara adds: And this applies only to the height of the houses themselves. However, if the poles [kashkushei] and the towers [abrurei] that extend from the house are higher than the synagogue, we have no problem with it. Rav Ashi said: I caused the city of Mata Meḥasseya to not be destroyed by building the synagogue higher than the other houses. The Gemara asks: Wasn’t Mata Meḥasseya ultimately destroyed? The Gemara answers: It was not destroyed because of that sin; other sins caused its destruction.