The name Marina in Hebrew letters is מרינה. 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.
מרינה
In short
Your name in Hebrew letters is מרינה. Adding up the numbers of its letters gives 305 — the same as the Torah word שה, “a member of a flock, i.e. a sheep or goat”. That number points to Torah page 305 of 354 — in the portion Vaetchanan. What that portion is about: Moses pleads to enter the land; the Ten Utterances repeated; “Hear, O Israel”; the warning against forgetting. 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. 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 מרינה gives 305.
305
The number 305 is the Torah word שה — «a member of a flock, i.e. a sheep or goat» (Genesis 22:7).
The number 305, as the remainder modulo 354, points to Torah page 305 in the book of Devarim (Deuteronomy). These are its opening words:
כל טוב אשר לא מלאת וברת חצובים אשר …
The verse this place falls on is Devarim (Deuteronomy) 6:11:
וּבָתִּים מְלֵאִים כָּל־טוּב אֲשֶׁר לֹא־מִלֵּאתָ וּבֹרֹת חֲצוּבִים אֲשֶׁר לֹא־חָצַבְתָּ כְּרָמִים וְזֵיתִים אֲשֶׁר לֹא־נָטָעְתָּ וְאָכַלְתָּ וְשָׂבָעְתָּ
and houses full of all good things, which thou didst not fill, and cisterns hewn out, which thou the didst not hew, vineyards and olive-trees, which thou didst not plant, and thou shalt eat and be satisfied--
This is from the portion Vaetchanan. What it is about: Moses pleads to enter the land; the Ten Utterances repeated; “Hear, O Israel”; the warning against forgetting.
The same number, 305, is given by these biblical names:
יצהר · נהרים · צריה · אדנירם
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) — 305. A Torah word with the same number is שה — “a member of a flock, i.e. a sheep or goat” (Genesis 22:7).
Reduced, each letter to one digit (mispar katan) — 17. A Torah word with the same number is טוב — “good” (Genesis 1:4).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 62. A Torah word with the same number is בין — “between” (Genesis 1:4).
Cumulative: a letter plus all letters before it (mispar kidmi) — 1205.
Squares of the letter values (mispar perati) — 44225.
Building: the sum grows with each letter (mispar bone’eh) — 1135.
The word that comes out is יגמטצ. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 152. A Torah word with the same number is נקב — “to puncture, literally” (Genesis 30:28).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 722. A Torah word with the same number is שכבת — “sexual) lying with” (Leviticus 18:20).
The number 305 appears in the classical books 7 times across 3 works. The earliest mention is בעל הטורים על התורה (~1300).
The name מרינה 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 מרינה 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.
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) — 305. A Torah word with the same number is שה — “a member of a flock, i.e. a sheep or goat” (Genesis 22:7).
Reduced, each letter to one digit (mispar katan) — 17. A Torah word with the same number is טוב — “good” (Genesis 1:4).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 62. A Torah word with the same number is בין — “between” (Genesis 1:4).
Cumulative: a letter plus all letters before it (mispar kidmi) — 1205.
Squares of the letter values (mispar perati) — 44225.
Building: the sum grows with each letter (mispar bone’eh) — 1135.
The word that comes out is יגמטצ. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 152. A Torah word with the same number is נקב — “to puncture, literally” (Genesis 30:28).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 722. A Torah word with the same number is שכבת — “sexual) lying with” (Leviticus 18:20).
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.