MB 317.1b - Tying and Untying Knots on Shabbat: Defining Permanence and Craftsmanship in Halacha

Moshe Zeidman

MB 317.1b - Tying and Untying Knots on Shabbat: Defining Permanence and Craftsmanship in Halacha

Moshe Zeidman

July 23, 2025 · 00:14:24

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In this episode, we explore the halachic principles behind tying and untying knots on Shabbat, focusing on the two key conditions discussed in classical sources: permanence and professional craftsmanship. We compare opinions from the Shulchan Aruch, Rambam, Rashi, and the Mishnah Berurah, and address when a knot may be permitted for mitzvah purposes or in cases of discomfort. Clear guidelines and practical examples—like tying a bucket rope or measuring a mikvah—help clarify when a knot constitutes a biblical or rabbinic concern.