[Avodah] When did Judaism begin?

[Micha Berger]

On Wed, Jan 20, 2010 at 11:23:40PM EDT, R Zev Sero wrote to Areivim
about the avos through our ancestors up to matan Torah:
:                We consider all those people to have been practising
: Judaism, whether with the legal status of Bnei Noach or of Yisrael.
: They were serving Hashem, learning Torah, and doing mitzvos, albeit
: as "einam metzuvim"....

I think we hold lehalakhah they weren't "Jewish". IIRC, we pasqen that
gid hanaseh fried in cheilev would require two qorbanos. Usually we
would say ein issur chal al issur, but since gid hanasheh once applied
to non-Jews, it is a different kind of issur than kashrus.

See Chullin 89, and the rishonim on Beitzah 12a-b, the discussion of
cooking gid hanasheh bechalav on YT. (How do you get 5 issurim if gid
hanesheh were to block basar bechalav from being chal?)

Tir'u baTov!
-Micha

-- 
Micha Berger             Take time,
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Fax: (270) 514-1507            - Rabbi Simcha Zissel Ziv, Alter of Kelm