Mi Yodeya is a question and answer site for those who base their lives on Jewish law and tradition and anyone interested in learning more. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Who knows eighty?

Please cite/link your sources, if possible. At some point in the next few days, I will:

  • Upvote all interesting answers.

  • Accept the best answer.

  • Go on to the next number.

share|improve this question
up vote 4 down vote accepted

Eighty is the age described by Psalms for someone courageous (or strong, or disciplined; however you translate "gvurah.")

The Talmud considers the possibility that if someone is in their 70s we need to be more concerned that they'll die tomorrow than if they're in their 80s. While that seems counterintuitive, there was an AOJS article a while back looking at some longevity statistics that might support that. (Sorry, I don't recall the details; bonus points if anyone can find it please.)

Eighty are the answers of R' Yosef Engel, in a book called "Gvuros Shmonim" ("courage of eighty") based on the above Psalm, to the following question:

When dealing with Temple sacrifices: if the priest, while he's handling the sacrifice, has intent for it to be eaten at the wrong place or time, that inherently invalidates the sacrifice (known as pigul) immediately.

According to one Talmudic opinion, even the sacrifice's layman owner can invalidate it the same way.

Now the Torah describes a Temple procedure for the Sotah, a woman who allegedly committed adultery; and it involves a grain sacrifice. If the lay owner of a sacrifice can invalidate it too, why can't any woman in this situation void the procedure by having in mind "I want this sacrifice to be eaten ten years from now, in Alaska!"?

share|improve this answer

80 is the number of days that elapse after a woman who has given birth to a girl can resume her niddah cycle. (The first 14 days she is tamei regardless, and any bleeding during the next 66 days does not render her tamei.)

share|improve this answer

Yochanan Kohen Gadol served as Kohen Gadol for 80 years, but then became a Tzedoki. (Berachos 29a)

share|improve this answer

The city of Gufnis in Eretz Yisrael had 80 pairs of brothers who were Kohanim, married to 80 pairs of sisters who were Kohanos. (Berachos 44a)

share|improve this answer

Moshe's age when he appears before Paroah

share|improve this answer
Related: judaism.stackexchange.com/q/8438 – msh210 Jun 24 '12 at 18:48

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.