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Curated Torah sources across every topic, from classical texts to contemporary responsa.
The Rebellious Elder: Zaken Mamre
Sources address the halachic definition, conditions, and theological foundation of zaken mamre—a Torah-ordained sage who defies the Great Sanhedrin's ruling and teaches others contrary to it. The sources span biblical law, Talmudic jurisprudence, medieval codification, and mystical philosophy, emphasizing that the Sanhedrin's authority is essential to Torah's unity and the preservation of Jewish communal law.
בית דין הגדול שבירושלים הם עיקר תורה שבעל פה
Non-Jewish Agency in Ma'aser Separation
These sources explore how the Shulchan Aruch permits instructing a non-Jew to separate tithes despite the general principle that non-Jews cannot serve as formal agents. The solution lies in mechanisms like acquiring benefit for another without agency ('zechin le'adam shelo b'fanav') and retroactive ratification by the owner, which bypass the need for proper shelihut.
אוֹמֵר לְגוֹי וְעוֹשֶׂה
Non-Jewish Agency and Ma'aser at Twilight
These sources explore the tension between the principle that non-Jews cannot serve as halachic agents (ein shelihut l'akum) and situations where instructing a non-Jew to perform certain acts—such as separating ma'aser at the ambiguous moment of bein hashmashot—appears permitted. The sources distinguish between agency (shelihut), which requires the agent to be bound by the same obligations, and direct physical action (yad) or independent initiative, which may operate under different halachic rules.
אֵין הָעַכּוּ״ם נַעֲשֶׂה שָׁלִיחַ
Teaching Torah to Non-Jews: Rambam's Distinctions
Explores the halakhic prohibition against teaching Torah to gentiles, with particular focus on Rambam's nuanced position distinguishing between Muslims (to whom Torah may not be taught) and Christians (who may learn Torah if they accept its divine origin). Sources trace the biblical and talmudic foundations of this prohibition and its medieval interpretations.
תּוֹרָה צִוָּה לָנוּ מֹשֶׁה מוֹרָשָׁה
The Rabbinic Masters of Kraków
These sources trace the intellectual and spiritual legacy of Kraków's greatest Torah authorities, including the Rema, the Maharal, and the Shelah HaKadosh, who shaped Ashkenazic halachic tradition and musar thought across generations. Together they illustrate Kraków's emergence as a preeminent center of Jewish learning and rabbinic authority.
משֶׁה קִבֵּל תּוֹרָה מִסִּינַי, וּמְסָרָהּ לִיהוֹשֻׁעַ
The Two-Hair Threshold for Parah Adumah
Jewish law establishes that two black or white hairs disqualify the red heifer, while a single non-red hair does not. The sources explore this precise halakhic boundary, tracing it from Torah through rabbinic interpretation and later codification, and considering the philosophical dimensions of such specific legal thresholds.
הָיוּ בָהּ שְׁתֵּי שְׂעָרוֹת שְׁחוֹרוֹת אוֹ לְבָנוֹת פְּסוּלָה
Rambam on the Red Heifer Laws
The Rambam's comprehensive treatment of the parah adumah covers its preparation, the requirements for the animal, the gathering and division of its ashes, the creation of purification waters, and the paradoxical nature of the ritual—in which those who prepare it become impure while those sprinkled with it become pure. Sources emphasize the detailed halakhic procedures and cite this as a classic example of a divine decree whose underlying reason remains hidden.
הַנּוֹגֵעַ בְּמֵי חַטָּאת טָמֵא
Worker Withdrawal and Employer Remedies in Halacha
Jewish law permits a laborer to withdraw from employment mid-job because he serves God, not man, but this right is limited when the work involves a time-sensitive loss (davar ha'aved). The sources explore how employers may recover damages through wage deduction and replacement-cost recovery, and when the principle of irreplaceable loss overrides the worker's freedom to retract.
כִּי לִי בְנֵי יִשְׂרָאֵל עֲבָדִים וְלֹא עֲבָדִים לַעֲבָדִים
Returning Lost Property: Obligations and Exceptions
Jewish law establishes a comprehensive framework for handling found items, balancing the finder's obligation to identify and return property against practical considerations such as identifying marks, public announcement requirements, and the owner's presumed despair of recovery. The sources span Torah, Mishnaic, Talmudic, and Rabbinic codifications of these duties.
הרואה אבידת ישראל חייב לטפל בה להשיבה לבעליה
The Laws of Returning Lost Objects
This collection explores the biblical and rabbinic parameters of hashavat aveidah (returning lost property), including when a finder must announce a find versus when he may keep it, the role of identifying marks and owner despair, and the finder's obligations of care. The sources trace the mitzvah from its Torah sources through Talmudic case law to later codifications.
אֵלּוּ מְצִיאוֹת שֶׁלּוֹ, וְאֵלּוּ חַיָּיב לְהַכְרִיז
Dual Authority in Jewish Governance
Jewish law establishes two complementary systems of authority: courts administering Torah law and kings empowered to act for the common good beyond strict halakha. These sources explore how divine law guides both the judiciary and monarchy, and how political necessity integrates with religious obligation in establishing a just society.
אֵין מַעֲמִידִין מֶלֶךְ בַּתְּחִלָּה אֶלָּא עַל פִּי בֵּית דִּין שֶׁל שִׁבְעִים זְקֵנִים וְעַל פִּי נָבִיא
Interrupting Shema for Fear and Honor
These sources examine the halakhic rules governing when one may interrupt the recitation of Shema to greet another person. The sources distinguish between interruptions motivated by honor (greeting a dignified person) and those motivated by fear (greeting someone one is afraid of), and clarify which parts of Shema permit such interruptions and which do not.
בַּפְּרָקִים שׁוֹאֵל מִפְּנֵי הַכָּבוֹד וּמֵשִׁיב, וּבָאֶמְצַע שׁוֹאֵל מִפְּנֵי הַיִּרְאָה וּמֵשִׁיב