While working on "the-holy-ark-weigh-4-tons" I noticed, the thickness of the Kapores (1 Tefach) is concluded only in the Gemmorah by גזירה שווה to other measures (Succa 5a):

"... אלא כפורת טפח מנלן? דתני רבי חנינא כל הכלים שעשה משה נתנה בהן תורה מדת ארכן ומדת רחבן ומדת קומתן כפורת מדת ארכה ומדת רחבה נתנה מדת קומתה לא נתנה "

Why the Torah, listing all other measures of the Aron1 skips this one?

1 I would like to hear if you can spot other missing measures in the Mishkan.

  • If I recall correctly, it doesn't list the measurements of the מנורה, either.
    – msh210
    Commented Mar 2, 2019 at 21:26

1 Answer 1


The Torah doesn’t have any extra words. If we can figure out the thickness without the extra words, the words aren’t needed

  • Those are blind assumptions, not conclusions. Just about everything else in the Torah can be "logically" derived from other sources, and still we have other measurements.
    – Al Berko
    Commented Mar 8, 2019 at 10:55
  • Can you give an example of that?
    – Lo ani
    Commented Mar 8, 2019 at 13:25

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