The name Marisa in Hebrew letters is מריסה. 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.
מריסה
In short
Your name in Hebrew letters is מריסה. The name comes from Hebrew: from מרים, Miriam; in the Tanakh, name of two Israelite women (Exodus 15:20). Adding up the numbers of its letters gives 315 — the same as the Torah word מערה, “cave”. That number points to Torah page 315 of 354 — in the portion Re'eh. What that portion is about: “See”: blessing and curse; one place of worship; the tithe; permitted food; the three pilgrimage festivals. The verse that begins with the first letter of your name and ends with the last is Genesis 7:8. Each of these steps is laid out below with its sources. Every figure can be checked by hand.
You wrote “Marisa” — this exact spelling is what was calculated: מריסה. 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 מריסה gives 315.
315
The number 315 is the Torah word מערה — «cave» (Genesis 19:30).
Are they not beyond the Jordan, behind the way of the going down of the sun, in the land of the Canaanites that dwell in the Arabah, over against Gilgal, beside the terebinths of Moreh?
This is from the portion Re'eh. What it is about: “See”: blessing and curse; one place of worship; the tithe; permitted food; the three pilgrimage festivals.
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) — 315. A Torah word with the same number is מערה — “cave” (Genesis 19:30).
Reduced, each letter to one digit (mispar katan) — 18. A Torah word with the same number is חי — “living” (Genesis 1:20).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 63. A Torah word with the same number is חנה — “to encamp” (Genesis 26:17).
Cumulative: a letter plus all letters before it (mispar kidmi) — 1265.
Squares of the letter values (mispar perati) — 45325.
Building: the sum grows with each letter (mispar bone’eh) — 1155.
The letters that come out are יגמחצ — not a word that stands in the Pentateuch. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 151. A Torah word with the same number is קנא — “to envy, be jealous” (Genesis 26:14).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 736. A Torah word with the same number is פתרון — “interpretation” (Genesis 40:5).
The number 315 appears in the classical books 7 times across 4 works. The earliest mention is פרי עץ חיים שער חג המצות (~1573).
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 — 315. The channel posts one number a day, one verse and the Torah page it lands on. Nothing after it, no mailing list.
Hebrew is written from right to left. מריסה has 5 letters: מ Mem, ר Resh, י Yod, ס Samekh, ה He. The first letter is Mem, the last is He.
For an engraving, a sign or a tattoo, show the spelling to someone who reads Hebrew: transliterating a name is a choice, not the only option.
The name מריסה does not stand as a word in the Pentateuch — as with most names, including many Tanakh names from the later books.
The verse of your name
There is a custom: at the end of the prayer one says a Torah verse that begins with the first letter of one's name and ends with its last. For מריסה these are מ and ה. The Pentateuch has 16 such verses. The first of them is Genesis 7:8:
מן הבהמה הטהורה ומן הבהמה אשר איננה טהרה ומן העוף וכל אשר רמש על האדמה
This is from the portion Noach. What it is about: The flood and the ark; the rainbow as a sign of the covenant; the tower of Babel; ten generations from Noah to Abraham.
«Are they not beyond the Jordan, behind the way of the going down of the sun, in the land of the Canaanites that dwell in the Arabah, over against Gilgal, beside the terebinths of Moreh?»
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.