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Are blessings before eating biblical obligations or rabbinic enactments? The Gemara (גמרא) in Berachos 35a reveals a dual structure: the prohibition against eating without blessing is biblical (based on svara), but the positive kiyum of reciting blessings is rabbinic. This distinction explains why birchot hanehenin function as heter rather than pure mitzvah (מצוה) obligations.
This shiur provides a comprehensive analysis of the fundamental nature of blessings in Jewish law, focusing on the talmudic discussion in Berachos 35a. Rabbi Zweig begins by examining the principle of safek brachos l'kula (when in doubt about blessings, we are lenient) and its apparent contradictions. The Rif holds that regarding uncertainty about whether one fulfilled a blessing obligation, we are lenient, while the Akiva Eiger argues that this principle doesn't apply to birchot hanehenin (blessings of enjoyment) because they function differently from birchot hamitzvot. The core distinction lies in understanding that birchot hanehenin create permission to eat - without the blessing, eating is forbidden - while birchot hamitzvot are positive obligations. The Gemara (גמרא) explores whether blessings serve merely as permission (heter) or contain an additional positive commandment (kiyum). Initially suggesting that blessings are biblical obligations based on the principle that one cannot benefit from this world without blessing, the Gemara cites the verse 'kodesh yehilulam' to indicate that blessing contains an element of sanctification or positive fulfillment beyond mere permission. However, the sugya concludes that while the prohibition against eating without blessing is biblical (based on logical necessity - svara), the positive obligation of blessing is only rabbinical. This creates a dual structure: a biblical prohibition requiring permission through blessing, and a rabbinical positive commandment to perform the act of blessing with proper intention and formulation. Rabbi Zweig examines various practical applications of this principle, including the laws of tasting food while cooking and drinking wine during meals. The analysis includes extensive discussion of Tosafot's approach to apparent contradictions in the text, particularly regarding the kal v'chomer (a fortiori argument) that seems to prove blessings before eating should be biblical if blessings after eating (birkat hamazon) are biblical. The shiur concludes with examination of how this understanding affects practical halachic questions and the Rambam (רמב"ם)'s position on making blessings after the fact.
Berachos 35a
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