Who knows seventy-two?
Please cite/link your sources, if possible. At some point in the next few days, I will:
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Seventy-two are the minutes of Rabbeinu Tam.
It fits the beat!
A word of explanation: many people in America wait 72 minutes after sunset for the end of Shabbos, as an understanding of Rabbeinu Tam's interpretation of the Gemara. There are many, many other opinions about this, including those ask if 72 minutes at Rabbeinu Tam's high-latitude France would correspond to a shorter number in much of America, which is further south.
Seventy-two are the elders given prophecy to assist Moshe. 70 showed up, plus Eldad and Meidad who stayed behind and still got it.
The three most-popular words in Tanach with Gematria 72 are Vayelchu, Chesed, and Bincha. All of which appear with regards to Avraham. Not sure what to make of that ...
From what I heard, 72 was the target number of volumes for the Artscroll Talmud, but they spilled over to 73 (oops, tomorrow's answer).
Seventy-two describes one of the Name-permutations of Hashem.
(Sort of fits the beat.)
In Parshas Beshalach, there are three consecutive pesukim (14:19,20,21) that contain exactly 72 letters. By combining the letters in a special way, we can extract 72 three-letter sets which together form the Shem HaMeforash. The first and thirty-seventh set spell the Divine Name "Ani-Vaho," which was used during the Aravah ceremony on Sukkos (and which we say in "Hoshanos"). See Rashi Sukkah 45a.