Demon Warding

And Rabbi Yitzḥak said: Anyone who recites Shema upon his bed, demons stay away from him. This is alluded to, as it is stated: “But man is born into trouble, and the sparks [reshef ] fly [uf ] upward” (Job 5:7). The verse is explained: The word fly [uf ] means nothing other than Torah, as Torah is difficult to grasp and easy to lose, like something that floats away, as it is stated: “Will you set your eyes upon it? It is gone; for riches certainly make themselves wings, like an eagle that flies into the heavens” (Proverbs 23:5). The word “sparks” means nothing other than demons, as it is stated: “Wasting of hunger, and the devouring of the sparks [reshef] and bitter destruction [ketev meriri], and the teeth of beasts I will send upon them, with the venom of crawling things of the dust” (Deuteronomy 32:24). Here we see reshef listed along with ketev meriri, both of which are understood by the Sages to be names of demons.

The Sages taught: If one wishes to study Torah himself and his son also wants to study, he takes precedence over his son. Rabbi Yehuda says: If his son is diligent and sharp, and his study will endure, his son takes precedence over him. This is like that anecdote which is told about Rav Ya’akov, son of Rav Aḥa bar Ya’akov, whose father sent him to Abaye to study Torah. When the son came home, his father saw that his studies were not sharp, as he was insufficiently bright. Rav Aḥa bar Ya’akov said to his son: I am preferable to you, and it is better that I go and study. Therefore, you sit and handle the affairs of the house so that I can go and study.

Abaye heard that Rav Aḥa bar Ya’akov was coming. There was a certain demon in the study hall of Abaye, which was so powerful that when two people would enter they would be harmed, even during the day. Abaye said to the people of the town: Do not give Rav Aḥa bar Ya’akov lodging [ushpiza] so that he will be forced to spend the night in the study hall. Since Rav Aḥa bar Ya’akov is a righteous man, perhaps a miracle will occur on his behalf and he will kill the demon.

Rav Aḥa found no place to spend the night, and he entered and spent the night in that study hall of the Sages. The demon appeared to him like a serpent with seven heads. Rav Aḥa bar Ya’akov began to pray, and with every bow that he bowed one of the demon’s heads fell off, until it eventually died. The next day Rav Aḥa said to the townspeople: If a miracle had not occurred, you would have placed me in danger.

Rabbi Tanḥum bar Ḥanilai said: Anyone who is modest in the bathroom will be saved from three things: From snakes, from scorpions and from demons. And some say that even his dreams will be settling for him.

The Gemara relates: There was a particular bathroom in the city of Tiberias, where, when two would enter it, even during the day, they would be harmed by demons. When Rabbi Ami and Rabbi Asi would each enter alone, they were not harmed. The Sages said to them: Aren’t you afraid? Rabbi Ami and Rabbi Asi said to them: We have learned through tradition: The tradition to avoid danger in the bathroom is to conduct oneself with modesty and silence. The tradition to end suffering is with silence and prayer.

Because fear of demons in bathrooms was pervasive, the Gemara relates: Abaye’s mother raised a lamb to accompany him to the bathroom. The Gemara objects: She should have raised a goat for him. The Gemara responds: A goat could be interchanged with a goat-demon. Since both the demon and the goat are called sa’ir, they were afraid to bring a goat to a place frequented by demons.

Before Rava became the head of the yeshiva, his wife, the daughter of Rav Ḥisda, would rattle a nut in a copper vessel for him. This was in order to fend off demons when he was in the bathroom. After he was chosen to preside as head of the yeshiva, he required an additional degree of protection, so she constructed a window for him, opposite where he would defecate, and placed her hand upon his head.

The Sages taught: A person should not drink water from rivers or from ponds at night. And if he drank, his blood is upon his own head due to the danger. The Gemara explains: What is this danger? The danger of blindness. The Gemara asks: And if he is thirsty, what is his remedy? If there is another person with him, he should say to him: So-and-so, son of so-and-so, I thirst for water. And if there is no one else with him, he should say to himself: So-and-so, my mother said to me to beware of shavrirei, the demon of blindness. He should continue to say the following incantation, in the first part of which the demon’s name gradually disappears: Shavrirei berirei rirei yiri ri; I thirst for water in white earthenware cups. This is an incantation against those demons.

With regard to the instruction: Do not go out alone at night, the Gemara states that this is as it was taught in a baraita: One should not go out alone at night, neither on Tuesday nights nor on Shabbat nights, i.e., Friday nights, because the demon Agrat, daughter of Maḥalat, she and 180,000 angels of destruction go out at these times. And as each and every one of them has permission to destroy by itself, they are all the more dangerous when they go forth together.

The Gemara states: Initially, these demons were present every day. Once Agrat, daughter of Maḥalat, met Rabbi Ḥanina ben Dosa and said to him: Had they not announced about you in the Heavens: Be careful of Ḥanina and his Torah, I would have placed you in danger. He said to her: If I am considered important in Heaven, I decree upon you that you should never travel through inhabited places. She said to him: I beg you, leave me a little space. He left for her Shabbat nights and Tuesday nights.

And furthermore, once Agrat, daughter of Maḥalat met Abaye and said to him: Had they not announced about you in the Heavens: Be careful of Naḥmani, Abaye, and his Torah, I would have placed you in danger. He said to her: If I am considered important in Heaven, I decree upon you that you should never pass through inhabited places. The Gemara asks: But we see that, notwithstanding these anecdotes, demons do pass through inhabited areas. The Sages say in explanation: These demons

are found on the paths [gazyata] near the city, as horses belonging to the demons flee along those paths, and the demons come to lead them away. Generally, however, demons do not enter inhabited places.

Rav Yosef said: Yosef the Demon said to me: Ashmedai, the king of the demons, is appointed over all who perform actions in pairs, and a king is not called a harmful spirit. A king would not cause harm. Consequently, there is no reason to fear the harm of demons for having performed an action in pairs. Some say this statement in this manner: On the contrary, he is an angry king who does what he wants, as the halakha is that a king may breach the fence of an individual in order to form a path for himself, and none may protest his action. Similarly, the king of demons has full license to harm people who perform actions in pairs.

Rav Pappa said: Yosef the Demon said to me: If one drinks two cups, we demons kill him; if he drinks four, we do not kill him. But this person who drank four, we harm him. There is another difference between two and four: With regard to one who drinks two, whether he did so unwittingly or intentionally, we harm him. With regard to one who drinks four, if he does so intentionally, yes, he is harmed; if he does so unwittingly, no, he will not be harmed.

The Gemara asks: And if one forgets and it happens that he goes outside after having drunk an even number of cups, what is his solution? The Gemara answers: He should take his right thumb in his left hand, and his left thumb in his right hand, and say as follows: You, my thumbs, and I are three, which is not a pair. And if he hears a voice that says: You and I are four, which makes a pair, he should say to it: You and I are five. And if he hears it say: You and I are six, he should say to it: You and I are seven. The Gemara relates that there was an incident in which someone kept counting after the demon until he reached a hundred and one, and the demon burst in anger.

(24) Wasting famine, ravaging plague, Deadly pestilence (Ketev Meriri), and fanged beasts Will I let loose against them, With venomous creepers in dust.

The Gemara discusses the ketev meriri, a demon mentioned in the Torah (Deuteronomy 32:24). There are two types of ketev demons, one that comes before noon in the morning and the other one comes in the afternoon. The one that comes before noon is called ketev meriri, and it appears in a jug of kutaḥ, a Babylonian spice, and continuously revolves around inside it. The ketev in the afternoon is called ketev yashud tzaharayim (Psalms 91:6), and it appears inside the horn of a goat and revolves around inside it like a sifter.

The Gemara relates: Abaye was coming and walking along the street. And Rav Pappa was walking on his right and Rav Huna, son of Rav Yehoshua, was on his left. Abaye saw a certain ketev meriri coming on his left side and he switched Rav Pappa to his left and Rav Huna, son of Rav Yehoshua, to his right. Rav Pappa said to Abaye: And I, what is different that you were not concerned about any possible harm to me? Abaye said to him: The time is in your favor. You are wealthy and fortunate, and therefore I believe that you will most likely not be harmed by the demon.

The Gemara comments: From the first of Tammuz to the sixteenth of that month, these demons are certainly found. From here onward it is uncertain whether they are found or whether they are not found. And they can be found in the shadow of a sea squill that has not grown a cubit, and in the shadow of objects in the morning and evening when their length is less than a cubit. And they are mostly found in the shadow of a privy.

And Abaye said: At first I would say as follows: The reason for this practice that people do not eat vegetables that fell on the table is because it is repulsive. But the Master said to me that it is because it is bad for halitosis. And Abaye said: At first I would say that the reason for this practice that people do not sit under a gutter is because of the waste water that pours out of it. But the Master said to me that it is because demons are commonly found there.

The Gemara relates: There were certain porters who were carrying a barrel of wine. When they wanted to rest, they placed it under a gutter and the barrel burst. They came before Mar bar Rav Ashi, who brought out horns and had them blown as he excommunicated the demon of that place. The demon came before Mar bar Rav Ashi, and the Sage said to it: Why did you do this? The demon said to him: How else should I act, when these men place a barrel on my ear?

Mar bar Rav Ashi said to it: What are you doing in a place where many people are found? You are the one who deviated from the norm; go and pay them the value of the barrel of wine. The demon said to him: Let the Master now set a time for me, so that I can find the money, and I will pay. Mar bar Rav Ashi set a time for his payment. When that time arrived, the demon delayed in coming to pay. When the demon eventually came, Mar bar Rav Ashi said to it: Why did you not come at the time set for you? The demon said to him: With regard to any item that is tied up, or sealed, or measured, or counted, we have no authority to take it. We are unable to obtain money until we find an ownerless item. For this reason, it took him a long time to find enough money to pay for the barrel.

And Abaye said: At first I would say that this practice that people pour out a little water from the mouth of a pitcher before drinking from it is followed because of twigs it might contain. But the Master said to me that it is followed because there are foul waters in the pitcher.

The Gemara relates: There was a certain son of a demon that was in Rav Pappa’s house as a servant. It went to bring water from the river, and it delayed in returning. When it came, the members of Rav Pappa’s household said to it: Why did you delay? It said to them: I waited until the foul waters passed. In the meantime,

the demon saw the members of Rav Pappa’s household pouring water from the mouth of the pitcher before drinking from it. The demon said to them: If I had known that you regularly do this, I would not have delayed. I would have brought the water straight from the river, knowing you would pour out the foul waters.