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Why does the Gemara (גמרא) say "yoshon likach beh chadash" when discussing selling a Sefer Torah (תורה)? The shiur analyzes whether kedusha transfers to the money (kedushas domim), explores when there's a requirement of ma'alah b'kodesh versus ein moridin, and develops the distinction between fixing a yerida that occurred versus being obligated in ma'alah on money you originally invested versus windfalls. Rashi (רש"י)'s approach that b'dieved you're not obligated to replace the Sefer Torah is contrasted with the Ramban (רמב"ן)'s position on kedushas domim.
This shiur analyzes Megillah 27a, which discusses the laws of selling a Sefer Torah (תורה) and other holy objects. The Gemara (גמרא) introduces the rule that one may sell a Sefer Torah only to buy a new one ("yoshon likach beh chadash"), raising fundamental questions about the nature of kedusha transferred to money and the obligation to upgrade sacred items. The shiur opens with a textual difficulty: why does the Gemara formulate the question as "yoshon likach beh chadash" (old to buy new) rather than simply stating you cannot sell one Sefer Torah to buy another equal one? This precise language suggests that the psak halacha (הלכה) should reflect whether we hold the kula (lenient view) that yoshon for chadash is permitted, or the chumra that even this is forbidden. The formulation seems imprecise according to either position.
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Megillah 27a
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Why does the Gemara present a kal v'chomer for chuppah making kiddushin based on kesef not being maichel b'terumah, only to reject it? The shiur reveals that even the rejected kal v'chomer establishes a fundamental yesod: kiddushin is a kinyan for ishus (marital relationship), not merely a kinyan in hilchos kinyanim. The second kal v'chomer—from chuppah being gomeres—raises Tosafos's famous question.
Is the kesef used in kiddushin a true kinyan (acquisition), or merely a symbolic means of establishing marriage? The shiur analyzes multiple interpretations of the Gemara's derivation from ki yikach ki'ach mi'Sayeffron, exploring whether marriage constitutes ownership, and develops three fundamental approaches: (1) The Gemara proves ishus is a kinyan, (2) ishus is not a kinyan but uses kinyan-like means, or (3) ishus is a kinyan but the kesef may not be a ma'aseh kinyan. The Rambam's position—calling kesef "midivrei sofrim"—is explained as distinguishing between cross-referencing concepts versus borrowing terminology.
Why does the Mishna alternate between the language of "kinyan" (acquisition) and "kiddushin" (sanctification) when describing marriage? The shiur develops a fundamental distinction: marriage has two separate aspects—a kinyan dimension (ownership) and a kedusha dimension (sanctified relationship). Either aspect can initiate the bond, and understanding this dual nature resolves multiple textual and halachic questions throughout the sugya.
Does kiddushei shetar require a shevah pruta? The Ran presents two approaches to the Rif's position. The shiur develops the Ran's second pshat that shetar kiddushin functions as a hachnah (exchange) rather than a mere kinyan nesina. This reading has profound implications for isuri hana'ah, mechubar, and the relationship between kesef and shetar.
