About the Mystery of the Letters the mid-6th century, in which Mar Saba had played an important role. The anonymous author of the treatise declares he was prompted to the study of the secret meanings of the letters by the words of the Apocalypse, "I am the Alpha and Omega", and that he subsequently received a vision about them on Mount Sinai. The author proposes a re-modelled Greek alphabet reduced to 22 letters on the model of the 22 letters of Hebrew (discounting Xi Ξ and Psi Ψ), and with the Hebrew letter names. He then interprets these letters as symbolic figures of 22 works of
Old Hungarian alphabet (e, é, i, í, ö, ő, ü, ű). The names of the consonants are always pronounced with a vowel. In the old alphabet, the consonant-vowel order is reversed, unlike today's pronunciation ("ep" rather than "pé"). This is because the oldest inscriptions lacked vowels and were rarely written down, similar to other ancient languages' consonant-writing systems (Arabic, Hebrew, Aramaic, etc.). The alphabet did not contain letters for the phonemes dz and dzs of modern Hungarian, since these are relatively recent developments in the language's history. Nor did it have letters corresponding to the Latin q, w, x and y. The modern