תורה at skip 50 in Genesis
This is the observation that began the subject. From the first ת of Genesis, every 50th letter spells תורה. It reproduces exactly in the Leningrad text. Here is the measurement and what to make of it.
The observation
The first letter ת in the Book of Genesis is the sixth letter of the book, at the end of the word בראשית. Count forward 50 letters, with spaces ignored, and you land on a ו. Fifty more bring you to a ר. Fifty more bring you to a ה. The four letters spell תורה. The last of them falls in Genesis 1:5.
Some writers say "49 letters between". That is the same sequence. We count from one letter to the next, so the skip is 50. You can do this count yourself with a printed Tanakh and a pencil.
Where it comes from
The observation is told in the name of Rabbi Michael Dov Weissmandl, who worked by hand, long before computers. His students published his writings as Torath Hemed in 1958, the year after his death. The 1994 paper in Statistical Science credits him with first noticing the phenomenon, and it cites that book.
It is usually told as the first part of a pattern across the five books. Exodus has the same reading from its own first ת. Leviticus, Numbers and Deuteronomy are said to follow with variations, and our gallery measures each one.
The measurement
| Measure | Value |
|---|---|
| Found in the book | 3 |
| Chance alone | 2.215 |
| Chance of 3 or more (Poisson) | 0.38 |
| Letter shuffles with 3 or more | 404 of 1,000 |
| Same skip, backward | 3 |
The other two forward sequences start in Genesis 16:8 and Genesis 49:28. So the count for the whole book is ordinary. More than one shuffled Genesis in three matches it. If this sequence is special, the reason cannot be how many there are.
It helps to look at the skips around it. Forward in Genesis, across skips 2 to 100, תורה averages 2.15 sequences per skip. Skips 2 and 21 each have 6. Skip 50, with 3, sits in the crowd. Nobody would pick it out of that list by its count.
What is unusual about it
The feature that strikes people is the start. It begins at the very first ת of the Torah. That is a different question from the count, and we can measure it too. From this one letter, how many skips spell תורה? Among skips 2 to 5,000 there are three: 50, 133 and 554. Chance alone gives about 2.7 over that range. So the first ת is not unusual for how many times it starts the word.
What remains is that one of those three is a small round number. How unlikely is that? It depends on what you would have counted as interesting. Would you have noticed 40? 49? 70? 100? Would you have been struck if the sequence had started at the first letter of the book, or at the first ו, or spelled the word backward? Nobody fixed those rules in advance, so no honest number can be attached to it. Bar-Hillel, Bar-Natan and McKay make this point in their 1998 essay. A number for a pattern chosen after it was seen has very little to say.
How to read it
The sequence is real and easy to check. Its position is striking enough that people have remembered it for generations. As a measurement it is one sequence in a book that holds several, at a skip someone chose after seeing it. We show it because it is the root of this whole field and because you can check it yourself in a minute.
In the laboratory, this entry opens with the term, the scope and the skip already set. Tap the ת and Genesis 1:1 opens with the letter marked. Then widen the skip range and look at how quickly the count grows.
Sources
- Rabbi Michael Dov Weissmandl, Torath Hemed, Yeshivath Mt. Kisco, 1958.
- Doron Witztum, Eliyahu Rips and Yoav Rosenberg, "Equidistant Letter Sequences in the Book of Genesis", Statistical Science 9(3), 1994, 429-438.
- The text: the Westminster Leningrad Codex, as published by the Open Scriptures Hebrew Bible project.
Checked against its sources on 2026-10-31.