The name Siaha in Hebrew letters is סיעהא. 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.
סיעהא
In short
Your name in Hebrew letters is סיעהא. A Tanakh name: one of the Nethinim (first in Ezra 2:44; 2 mentions in the Tanakh). Meaning, per Strong’s dictionary (1890): “congregation”. Adding up the numbers of its letters gives 146 — the same as the Torah word קום, “to arise”. That number points to Torah page 146 of 354 — in the portion Ki Tisa. What that portion is about: The half-shekel for the census; the golden calf and the broken tablets; the thirteen attributes of mercy; the second tablets. Each of these steps is laid out below with its sources. Every figure can be checked by hand.
You wrote “Siaha” — this exact spelling is what was calculated: סיעהא. 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 סיעהא gives 146.
146
The number 146 is the Torah word קום — «to arise» (Genesis 4:8).
'See, I have called by name Bezalel the son of Uri, the son of Hur, of the tribe of Judah;
This is from the portion Ki Tisa. What it is about: The half-shekel for the census; the golden calf and the broken tablets; the thirteen attributes of mercy; the second tablets.
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) — 146. A Torah word with the same number is קום — “to arise” (Genesis 4:8).
Reduced, each letter to one digit (mispar katan) — 20. A Torah word with the same number is היה — “to be, become” (Genesis 1:2).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 47. A Torah word with the same number is אולי — “perhaps” (Genesis 16:2).
Cumulative: a letter plus all letters before it (mispar kidmi) — 651. A Torah word with the same number is תרומה — “contribution, offering” (Exodus 25:2).
Squares of the letter values (mispar perati) — 8626.
Building: the sum grows with each letter (mispar bone’eh) — 561. A Torah word with the same number is תועפה — “strength, horns” (Numbers 23:22).
The letters that come out are חמזצת — not a word that stands in the Pentateuch. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 545. A Torah word with the same number is מתקה — “Mithkah, wilderness camp” (Numbers 33:28).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 387. A Torah word with the same number is השבלים — “the ears of grain” (Genesis 41:7).
The number 146 appears in the classical books 9 times across 5 works. The earliest mention is ספר קרניים (~1400).
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 — 146. 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. סיעהא has 5 letters: ס Samekh, י Yod, ע Ayin, ה He, א Alef. The first letter is Samekh, the last is Alef.
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 סיעהא 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
Neither the Pentateuch nor the whole Tanakh has a verse that begins with ס and ends with א. That happens with some letter pairs and means nothing in itself.
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.