What Is Gematria?

"Six hundred threescore and six" in Revelation 13:18 isn't a random number picked for menace — it's the numeric value of a name, spelled out in a writing system where every letter already had a number attached, and this site's own gematria tools compute those same historical values directly from the original-language text.

Letters that were also numbers

Ancient Hebrew and Greek, unlike English, never developed separate written symbols for numbers. Instead, every letter of both alphabets carried a fixed numeric value — aleph (א) is 1 in Hebrew, alpha (α) is 1 in Greek, and so on through the whole alphabet. Any word, name, or phrase written in either language could therefore be added up letter by letter into a single total. Assigning meaning to those totals — Hebrew gematria, or its Greek counterpart, isopsephy — is a practice at least as old as the writing systems that made it possible.

The number of the beast

The clearest example inside the Bible itself is Revelation's number of the beast, which the text explicitly frames as something requiring calculation, not just a label.

In the earliest Greek manuscripts, that number isn't even spelled out as an ordinary word — it's written using three Greek letters functioning purely as numerals (χ, ξ, and a form of sigma used only for the number 6), the same way a modern text might write "666" in digits rather than words. A small number of early manuscripts and patristic writers record a different number, 616, instead — a variant textual critics generally trace to exactly this letter-based, rather than word-based, way of writing the number down.

Isopsephy already at work in the extra-canonical corpus

This site's own broader-than-Protestant corpus preserves a second, far friendlier example of the same technique. The Sibylline Oracles — Jewish and Christian prophetic poetry from roughly the same era as the New Testament — pose a riddle naming Jesus by the isopsephy value of his Greek name, Ιησους, rather than the name itself.

The contrast is likely deliberate: 888, one more than the "perfect" 777 pattern some ancient writers favored, set directly against the beast's 666 — a numeric argument that Jesus's name outranks the beast's, made by early Christian writers using the same letters-as-numbers system Revelation itself assumes its readers already understood.

This site's own gematria tools

This site computes real historical gematria and isopsephy directly from its own seeded original-language text — genuine Hebrew letter values for the Old Testament and genuine Greek letter values for the New Testament, distinct from the handful of popular but historically invented English-letter numerology schemes (Ordinal, Standard, and similar ciphers) also offered for readers who want to explore those separately, clearly labeled as English wordplay rather than ancient practice. Every verse's numeric values, in every scheme, are available from its own reading page.