Venue: Yeshivat Sha'alvim Yeshivat Sha'alvim

Machshava:

Philosophy of Halacha,  Ramban,  Shabbat 

Parsha:

Yitro 

Collections: R' Daniel Rosenfeld Ramban al HaTorah

References: Yevamot: 7a ,  Ramban: Shemos 20.8 ,  gilyon ha'shas of R'Eiger: Yevamos 7a  

Description

What is the connection between זכור and שמור? The רמב"ן's approach to קידוש and the power of מצוות עשה. This explains the rationale behind the famous principle of עשה דוחה לא תעשה