The name Jack in Hebrew letters is ג'ק. Below: how its number adds up, which page of the Torah it falls on and what verse stands there. Everything is computed, nothing is guessed.
ג'ק
In short
Your name in Hebrew letters is ג'ק. Adding up the numbers of its letters gives 103 — the same as the Torah word מנחה, “a donation”. That number points to Torah page 103 of 354 — in the portion Vaera. What that portion is about: “And I appeared”: the promise of redemption in four expressions; the first seven plagues, from blood to hail. Each of these steps is laid out below with its sources. There are no predictions or judgments here — only the text of the Torah and arithmetic you can check.
Adding up the letters of the name ג'ק gives 103.
103
The number 103 is the Torah word מנחה — «a donation» (Genesis 4:3).
The number 103, as the remainder modulo 354, points to Torah page 103 in the book of Shmot (Exodus). These are its opening words:
צפרדעים ועלו ובאו בביתך ובחדר משכבך ועל מטתך …
The verse this place falls on is Shmot (Exodus) 7:28:
וְשָׁרַץ הַיְאֹר צְפַרְדְּעִים וְעָלוּ וּבָאוּ בְּבֵיתֶךָ וּבַחֲדַר מִשְׁכָּבְךָ וְעַל־מִטָּתֶךָ וּבְבֵית עֲבָדֶיךָ וּבְעַמֶּךָ וּבְתַנּוּרֶיךָ וּבְמִשְׁאֲרוֹתֶיךָ
And the river shall swarm with frogs, which shall go up and come into thy house, and into thy bed-chamber, and upon thy bed, and into the house of thy servants, and upon thy people, and into thine ovens, and into thy kneading-troughs.
This is from the portion Vaera. What it is about: “And I appeared”: the promise of redemption in four expressions; the first seven plagues, from blood to hail.
The same number, 103, is given by these biblical names:
אבימלך · ציבא · צובה · געל
Nine ways of counting
The tradition counts the same name in several ways. The main one is above: each letter is its number. The other eight are old and checkable too; each gives its own number, and many of them have a Torah word with the same number.
Final letters as 500–900 (mispar gadol) — 103. A Torah word with the same number is מנחה — “a donation” (Genesis 4:3).
Reduced, each letter to one digit (mispar katan) — 4.
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 22. A Torah word with the same number is יחד — “a unit, i.e.” (Genesis 13:6).
Cumulative: a letter plus all letters before it (mispar kidmi) — 601. A Torah word with the same number is תאר — “outline, i.e. figure or appearance” (Genesis 29:17).
Squares of the letter values (mispar perati) — 10009.
Building: the sum grows with each letter (mispar bone’eh) — 106. A Torah word with the same number is נון — “Nun or Non, the father of Joshua” (Exodus 33:11).
The word that comes out is רד. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 204. A Torah word with the same number is צדיק — “just” (Genesis 6:9).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 269. A Torah word with the same number is ראובני — “a Reubenite or descendant of Reuben” (Numbers 26:7).
The number 103 appears in the classical books 18 times across 11 works. The earliest mention is בעל הטורים על התורה (~1300).
Nine ways of counting
The tradition counts the same name in several ways. The main one is above: each letter is its number. The other eight are old and checkable too; each gives its own number, and many of them have a Torah word with the same number.
Final letters as 500–900 (mispar gadol) — 103. A Torah word with the same number is מנחה — “a donation” (Genesis 4:3).
Reduced, each letter to one digit (mispar katan) — 4.
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 22. A Torah word with the same number is יחד — “a unit, i.e.” (Genesis 13:6).
Cumulative: a letter plus all letters before it (mispar kidmi) — 601. A Torah word with the same number is תאר — “outline, i.e. figure or appearance” (Genesis 29:17).
Squares of the letter values (mispar perati) — 10009.
Building: the sum grows with each letter (mispar bone’eh) — 106. A Torah word with the same number is נון — “Nun or Non, the father of Joshua” (Exodus 33:11).
The word that comes out is רד. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 204. A Torah word with the same number is צדיק — “just” (Genesis 6:9).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 269. A Torah word with the same number is ראובני — “a Reubenite or descendant of Reuben” (Numbers 26:7).
Add a date of birth and the verse of meeting from that week's portion is added to the reading.
Each Hebrew letter has a number; a word's number is their sum (alef 1 … tav 400). The page is the remainder modulo 354: the Torah divided into 354 pages of 861 letters, as the lunar year has 354 days. Everything can be checked by hand.
Биньямин Пичхадзе, «Хумаш 354» (חומש 354), Бней-Брак, 2002 / התשס״ג · A calculation, not a prediction.