Who knows one?

Please cite/link your sources, if possible. In about a day, I will:

  • Upvote all interesting answers.

  • Accept the best answer.

  • Go on to the next number.


Brand spanking cool new jewish Q & A site.

  • 5
    Panderer. You win this time. – Isaac Moses Mar 17 '10 at 3:02

Umm, 2 years later, and no one has gone with:

  • One is Hashem, the Holy One, Blessed Be He, Creator of Heaven and Earth.
  • 3
    Is "Creator of" how you interpret "sheba-"? – Isaac Moses May 15 '12 at 4:18
  • 1
    @IsaacMoses Oh, I hadn't intended it to be the actual lashon of the song, but if you prefer it that way, I'll gladly switch it. – Hod - Monica's Army May 15 '12 at 4:23
  • 1
    No; this version's fine, and easier to understand, theologically. – Isaac Moses May 15 '12 at 4:24
  • The "Lubavitch" version is also "Sheba-" – Shmuel Brin May 15 '12 at 5:58
  • 7
    There is a famous line that someone once came to his Rosh Yehiva saying that he had a bad dream and doesn't know what to do. The Rosh Yeshiva asks him to tell him the dream, so his student told him that he had a dream that G-d died. The Rosh Yeshiva told him to stop worrying, as he probably thought about that during the day. The student answered "Can't be! I haven't thought about G-d in who knows how many years!" – Shmuel Brin May 15 '12 at 6:00


(cf. אבן עזרא לשמות ג:יד)

  • 3:15 in my edition. Heavy, man. – Isaac Moses Mar 16 '10 at 4:42

Shabbos 28b says that the bull that Adam Harishon brought as a sacrifice had one horn.

  • Also AZ 8a [char] – DonielF Mar 12 '17 at 21:08

1 is the amount of wives you can have post Cheirem D'Rabbeinu Gershom in the communities that accepted it.

  • 2
    It's also the amount of husbands you can have in those communities. – Double AA Jan 27 '14 at 20:16
  • 2
    @DoubleAA No, I cannot have any husbands in any communities. Women, on the other hand... – Y     e     z Jan 27 '14 at 20:18
  • 1
    @DoubleAA Touche. – Y     e     z Jan 27 '14 at 20:21
  • 1
    @DoubleAA oooh good diyuk/pilpul, "you," may be referring to the person who asked the question in this case Isaac Moses, so YEZ is correct "you" i.e., Isaac Moses, may only have one wife, while DoubleAA, as a comment, presumably is referring to YEZ, in which case DoubleAA is wrong. :) b'emes not good styling on either front anyway – termsofservice Feb 14 '14 at 0:05
  • 1
    @DoubleAA I don't think I've ever said anything to contradict that statement. I once said that an androgynous having relations with himself is not a violation of any prohibition that has kares. Unlike the impossible case of sodomizing one's self. But we need not have this discussion again. – Y     e     z Feb 14 '14 at 3:49

echad (1)=13 (aleph=1, chet=8, dalet=4) Thirteen are the midos of Hashem!

  • You think you can skip to the end? – Isaac Moses Mar 17 '10 at 3:00
  • That's Maharal. Showing how 13 goes to 1. 12 needs 1 to even it out to 13, to a complete 1. Like the 12 months need an extra to make 1 solar year (on average), or the 12 tribes need Jacob to declare "Shema Yisrael ... Hashem ECHAD." – Shalom Mar 17 '10 at 14:28
  • See also: astrotorah.weeklyshtikle.com/2010/03/… – Isaac Moses Mar 17 '10 at 19:31
  • What happened to no lazy gematria? – DonielF Mar 12 '17 at 21:08

One is the number by which gematrias can be off and only elicit small groans.

  • 1
    This answer would be more valuable if you could edit in a source supporting it. – Isaac Moses Feb 24 '15 at 16:46

One is the kapores of the aron.

The Kapores is unique. There are multiple krashim, adanim, and badim, the paroches had a pair, and every other kli was duplicated multiple times by Shlomo HaMelech except the aron (Moshav Zekenim Parshas Terumah 25:21). But the structure of the aron itself is similar to that of the mizbach hanechoshes - a wooden box covered with metal. The only differences are the size and orientation of the box!

Only the kapores and the menorah were hammered directly out of gold, but the Shlomo had 10 duplicates of the menorah made, but he could not do so for the aron and the Kapores.

So the only truly unique piece is the kapores. Why?

Because the two angels facing each other represent and reflect the relationship between Klal Yisroel and Hashem. (See Yuma 54a)

We have two sets of luchos - the whole and the broken. There is the tzintenes hamon that testifies to the chessed of Hashem, but Chazal say that the mon melted and was drunk by the animals so that the umos ha'olam could experience it. All of these fill the inside of the aron because they form the foundation for the kapores: the representation of the one truly unique thing in the briyah - Hashem's loving relationship with US!


Shallum son of Jabesh reigned as king for one month in Samaria (Kings II 15:13).

Ahazia of Judah reigned for one year, (Kings II 8:26).

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