Finally, a last by very important component of talismans was the written word. As we remarked in the previous chapter, medieval sorcery’s chief instructors in this art were the Jewish cabalists, although the magical practice of incising runes has been known the world over, from ancient Egypt to China to Siberia. If a word of power or deity name has potency when uttered, it follows that it will also impart this force to an object when it is inscribed upon it.The same applies to magical stories, spells.
With the rise of a definite art of sorcery as distinct from religion, the notion also persisted that if the talisman spell were written in a foreign language or even in a mysterious cipher, it would become that much more powerful. Following the lead of medieval cabalists, who drew their wonder-working angel names and words of power from the Hebrew texts of Holy Scripture, the medieval and Renaissance sorcerer also adopted Hebrew as the magical language. It was the tongue the first men spoke, according to Scripture. The angels also talked it before the Fall, and so of course, did God Himself.
-The Coffee Table Book of Witchcraft and Demonology