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Prepared by Rabbi N. Slifkin
of Kollel Iyun Hadaf, Yerushalayim
Rosh Kollel: Rabbi Mordecai Kornfeld


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Nedarim 16

NEDARIM 16 - dedicated anonymously in honor of Kollel Iyun Hadaf, and in honor of those who study the Dafyomi around the world.

1) MISHNAH: SHEVUAH NOT TO EAT

(a) If someone said "Shevuah, I will not eat of yours," "Hoh Shevuah that I will eat of yours," or "Not a Shevuah, that I will not eat of yours," it is binding.
2) EXPLAINING THE MISHNAH
(a) We see in the Mishnah that "Hoh Shevuah that I will eat of yours," means that he will not eat.
(b) Question: We see differently elsewhere:
1. (Mishnah) There are two phrases that result in four types of Shevuah: That I will eat, that I will not eat, that I did eat, and that I did not eat.
2. We see that saying "that l will eat" means that he will eat!?
(c) Answer #1 (Abaye): It can mean either, depending on the circumstances;
1. If he was being pressed to eat, and he said, "I'll eat, I'll eat, and Shevuah that I will eat" then it means he will eat.
2. If he was being pressed to eat, and he said, "I won't eat, I won't eat, and Shevuah that I will eat" then it means he will not eat.
(d) Answer #2 (Rav Ashi): The Mishnah means that he said "Shevuah that I will not eat."
(e) Question: This is obvious?
1. Answer: One might have thought that he mispronounced it as "I will eat" (She'ochel instead of She'iy Ochel).
(f) Abaye did not offer Rav Ashi's answer because the Mishnah did not say "that I will not eat."
(g) Rav Ashi did not offer Abaye's answer because "that I will not eat" can also mean two things:
1. If he was being pressed to eat, and he said, "I won't eat, I won't eat," then whether his Shevuah was "I will eat" or "I won't eat" it means that he will eat.
2. But saying "Shevuah that I will not eat" can also mean that he will not eat.
3. The Tanna, however, stated a general rule that "I will eat" means he will eat and "I won't eat" means he won't (regardless of the context).
3) MISHNAH: STRINGENCIES OF NEDARIM
(a) The previous Mishnah is a stringency of Shevuos over Nedarim.
(b) The stringency of Nedarim is that they take effect to prohibit a Mitzvah such as Sukkah, Lulav, or Tefillin, which Shevuah cannot do.
16b---------------------------------------16b

4) STRINGENCIES OF SHEVUOS

(a) Question: The wording of the Mishnah indicates that although Shevuah is more stringent than a Neder in these cases, the Neder is still effective; but it isn't!?
(b) Answer: It refers to the case of vowing not to sleep, speak or walk, in which cases the Neder is effective D'Rabbanan.
5) SHEVUOS AGAINST MITZVOS
(a) The source that one cannot take a Shevuah to transgress a mitzvah is the Pasuk of "Lo Yachel Devaro" - he cannot negate his own dictates, but he can negate that which contravenes the Torah.
(b) Question: If one can make a Neder to transgress a mitzvah because it says "to Hashem, Lo Yachel" (that even if it is against a mitzvah, he must not break his word), then the same should be true for Shevuah, with which it also says "to Hashem"?
(c) Answer (Abaye): A person can prohibit the pleasure of a mitzvah on himself (a Neder) but he cannot prohibit himself from doing a mitzvah (a Shevuah).
(d) Alternate answer (Rava): Mitzvos are not for pleasure; the answer is that a person can prohibit the sitting in a Sukkah on himself (a Neder) but he cannot prohibit himself from doing a mitzvah (a Shevuah).
(e) Question: Surely the rule that one cannot make a Shevuah to transgress a mitzvah is learnt from elsewhere:
1. (Beraisa) We know that a Shevuah to transgress a mitzvah is ineffective as the Torah says "to do bad or good" - just as doing good refers to something optional, so to with something bad, which excludes someone who swears to transgress a mitzvah but does not do so.
(f) Answer: This Pasuk serves to exclude him from bringing a Korban; the Pasuk of Lo Yachel serves to exempt him from the Lo Sa'aseh.
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