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Audio Roundup 2025:38

by Joel Rich

S”A O”C 131:4 states “nahagu shelo lipol al pneichem … bbeit hachatan.” Does nahagu imply amcha did this and the rabbis didn’t resist? Even though tachanun was a rshut (maybe not now) why would one want not to take advantage to say it? also, why the focus on bet hachatan (like bet haavel) and not just in his presence? Is there a higher degree of joy there?


Do we believe that moshe rabbeinu and/or shlomo hamelech did not know how to calculate when the new moon would appear (as Hillel II established)?


Please direct any informal comments to [email protected].

Joel Rich

Joel Rich is a frequent wannabee cyberspace lecturer on various Torah topics. A Yerushalmi formerly temporarily living in West Orange, NJ, his former employer and the Social Security administration support his Torah listening habits. He is a recovering consulting actuary.

One Comment

  1. It is highly unlikely that Moshe or Shlomo knew how to calculate as we began to do in Tannaic, Amoraic and Geonic periods. Saadyah Gaon’s claim to the contrary is largely believed (Rambam and Ramban) to be an attempt to dispute the position of the Karaites. Saadyah’s proofs are used by modern bible critics to prove a calendar like that of the Saducees in earlier times.

    The earliest evidence of an attempt to calculate the average lunation, and a rather poor one, dates back to the first temple period. The Metonic cycle was first articulated in the 5th century BCE.

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