The name Perceval in Hebrew letters is פרסבאל. 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.
פרסבאל
In short
Your name in Hebrew letters is פרסבאל. Adding up the numbers of its letters gives 373 — the same as the Torah word שגע, “to be driven mad”. That number points to Torah page 19 of 354 — in the portion Lech Lecha. What that portion is about: “Go forth”: Abraham leaves Haran; the promise of land and offspring; the covenant between the pieces; circumcision. The verse that begins with the first letter of your name and ends with the last is Psalms 7:3. Each of these steps is laid out below with its sources. Every figure can be checked by hand.
You wrote “Perceval” — this exact spelling is what was calculated: פרסבאל. A name from the Tanakh — its Tanakh spelling is used. If your name is spelled differently, correct the Hebrew spelling and the report is recomputed.
Adding up the letters of the name פרסבאל gives 373.
373
The number 373 is the Torah word שגע — «to be driven mad» (Deuteronomy 28:34).
And Abram said unto Lot: 'Let there be no strife, I pray thee, between me and thee, and between my herdmen and thy herdmen; for we are brethren.
This is from the portion Lech Lecha. What it is about: “Go forth”: Abraham leaves Haran; the promise of land and offspring; the covenant between the pieces; circumcision.
Other 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) — 373. A Torah word with the same number is שגע — “to be driven mad” (Deuteronomy 28:34).
Reduced, each letter to one digit (mispar katan) — 22. A Torah word with the same number is יחד — “together” (Genesis 13:6).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 67. A Torah word with the same number is אבידן — “Abidan, chief of Benjamin” (Numbers 1:11).
Cumulative: a letter plus all letters before it (mispar kidmi) — 1564.
Squares of the letter values (mispar perati) — 50905.
Building: the sum grows with each letter (mispar bone’eh) — 1758.
The letters that come out are וגחשתכ — not a word that stands in the Pentateuch. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 737. A Torah word with the same number is לקראתו — “to meet him” (Genesis 14:17).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 1308.
The number 373 appears in the classical books 2 times across 2 works. The earliest mention is בעל הטורים על התורה (~1300).
Every letter of the name explained, the words and namesakes with references, the Hebrew date, the letter and tribe of the month, day 861 of your life (±1), the psalm by age, the attestations from the classical books — a PDF sent to your email.
The number of the day, every morning
Every date has a number too. Once a year it will match the number of your name — 373. The channel posts one number a day, one verse and the Torah page it lands on. Nothing after it, no mailing list.
Any name written in Hebrew letters is a number: פרסבאל = 373. And every date has a number of its own. There is a day in the year when the two coincide.
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.