How did Noach know which animals were tahor?

The Rabbi Chaim of Volozhin comments about this in his work, "Nefesh HaChaim, and says that the mefarshim say that Noach learned torah.

Which Mefarshim is he talking about?

This link mentions that it is discussed but does not specify where.

  • 2
    They came by themselves. Seven of each kosher and two of non kosher. He didn’t have to know beforehand
    – Chatzkel
    Jun 1, 2023 at 19:41
  • howdy @Chatzkel . i updated my question.
    – The Targum
    Jun 1, 2023 at 19:48
  • You also assume Tahor means kosher Jun 1, 2023 at 19:48
  • "Which Mefarshim is he talking about?" - The Nefesh HaChayim actually says that the Gemara in Yoma 28b and different Midrashim talk about it.
    – Shmuel
    Jun 1, 2023 at 19:51

1 Answer 1


Rashi on the passuk 7:2

הטהורה. הָעֲתִידָה לִהְיוֹת טְהוֹרָה לְיִשְׂרָאֵל; לָמַדְנוּ שֶׁלָּמַד נֹחַ תּוֹרָה (שם פ' כ"ו): הטהורה

CLEAN—It means those cattle which will in future be permitted to Israel as clean; we thus learn that Noah studied the Torah

  • Thank you, your swift wisdom is truly wonderful.
    – The Targum
    Jun 1, 2023 at 20:05
  • See the Hizquni there. Jun 2, 2023 at 17:27

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