Gematria dates back to the 8th century B.C. Babylon, and has been used by most mystics since that time including the Magi, Gnostics, and Kabbalists.
Gematria is a system of discovering truths and hidden meanings behind words, using numerical values for letters of the alphabet. Each letter corresponds to a number. The numerical values of words are totaled and interpreted in terms of other words with the same numerical value. Gematria dates back to the 8th century B.C. Babylon, and has been used by most mystics since that time including the Magi, Gnostics, and Quabbalists. Temurah is a form of gematria that creates anagrams through systematic letter substitutions.