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Why doesn't the principle that positive commandments override negative ones always apply consistently? The shiur distinguishes between true mitzvos aseh (like remaining in tzaraas state) versus issur aseh - prohibitions phrased positively (like Shabbos (שבת) rest). When a reinforced aseh confronts a lo sa'aseh plus true mitzvat aseh, it becomes ahavah against ahavah with yirah tipping the balance.
This shiur provides an in-depth analysis of the fundamental halachic principle of aseh docheh lo sa'aseh (a positive commandment overrides a negative commandment), using the Gemara (גמרא)'s discussion about circumcision and tzaraas as the primary case study. Rabbi Zweig begins by examining the Gemara's initial assumption that milah (circumcision) should override tzaraas because an aseh generally overrides a lo sa'aseh. However, the Gemara then refutes this by establishing that tzaraas involves both a lo sa'aseh and an aseh, creating a more complex dynamic. The shiur explores the Rajah's interpretation that the Gemara always understood tzaraas as having both prohibitive and positive elements, but initially thought milah was a 'reinforced aseh' that could override even a lo sa'aseh combined with an aseh. The reinforcement comes either from the thirteen covenants associated with milah or from the punishment of kares for failing to perform it.
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Shabbos 133a
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