Fight or Flight? Halakhic Responses to Plague

Rav Yosef taught a baraita: What is the meaning of that which is written with regard to the plague of the firstborn: “And none of you shall go out of the opening of his house until the morning” (Exodus 12:22)? If the plague was not decreed upon the Jewish people, why were they not permitted to leave their homes? Once permission is granted to the destroyer to kill, it does not distinguish between the righteous and the wicked. And not only that, but it begins with the righteous first, as it is stated in the verse: “And will cut off from you the righteous and the wicked” (Ezekiel 21:8), where mention of the righteous precedes the wicked.

The Sages taught: If there is plague in the city, gather your feet, i.e., limit the time you spend out of the house, as it is stated in the verse: “And none of you shall go out of the opening of his house until the morning.” And it says in another verse: “Come, my people, enter into your chambers, and shut your doors behind you; hide yourself for a little moment, until the anger has passed by” (Isaiah 26:20). And it says: “Outside the sword will bereave, and in the chambers terror” (Deuteronomy 32:25). The Gemara asks: What is the reason for citing the additional verses introduced with the term: And it says? The first verse seems sufficient to teach the principle that one should not emerge from one’s house when there is a plague. The Gemara answers: And if you would say that this matter, the first verse that states that none of you shall go out until morning, applies only at night, but in the day one may think that the principle does not apply, for this reason the Gemara teaches: Come and hear: “Come, my people, enter into your chambers, and shut your doors behind you.” And if you would say that this matter applies only where there is no fear inside, which explains why it is preferable to remain indoors, but where there is fear inside, one might think that when he goes out and sits among people in general company it is better, therefore, the Gemara introduces the third verse and says: Come and hear: “Outside the sword will bereave, and in the chambers terror.” This means that although there is terror in the chambers, outside the sword will bereave, so it is safer to remain indoors. At a time when there was a plague, Rava would close the windows of his house, as it is written: “For death is come up into our windows” (Jeremiah 9:20). The Sages taught: If there is famine in the city, spread your feet, i.e., leave the city, as it is stated in the verse: “And there was a famine in the land; and Abram went down into Egypt to sojourn there” (Genesis 12:10). And it says: “If we say: We will enter into the city, then the famine is in the city, and we shall die there" (II Kings 7:4)... The Sages taught: If there is a plague in the city, a person should not walk in the middle of the road, due to the fact that the Angel of Death walks in the middle of the road, as, since in Heaven they have given him permission to kill within the city, he goes openly in the middle of the road. By contrast, if there is peace and quiet in the city, do not walk on the sides of the road, as, since the Angel of Death does not have permission to kill within the city, he hides himself and walks on the side of the road. The Sages taught: If there is a plague in the city, a person should not enter the synagogue alone, as the Angel of Death leaves his utensils there, and for this reason it is a dangerous place. And this matter, the danger in the synagogue, applies only when there are no children learning in the synagogue, and there are not ten men praying in it. But if there are children learning or ten men praying there, it is not a dangerous place.

...

The Maharil wrote that it is best to escape in times of plague, and better at the beginning than at the end, and this is supported also written in the Zohar. Even though the Talmud says that when plague is in the city, one should stay indoors, I think fleeing is better. In any case, if one can remain inside without anyone leaving, do so, otherwise flee. And the customs of Israel are the Torah.

Rema: They also wrote to flee from the city when a plague is in the city, and one should leave at the beginning of the plague and not at the end. And all of these things are because of the danger, and a person who guards his soul will distance himself from them and it is prohibited to rely on a miracle in all of these matters.