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
Hebrew alphabet from its consonants based on the word's context and part of speech. Unlike the Paleo-Hebrew writing script, the modern Ashuri script has five letters that have special final forms, called sofit (, meaning in this context "final" or "ending") form, used only at the end of a word, somewhat as in the Greek or in the Arabic and Mandaic alphabets. These are shown below the normal form in the following table (letter names are Unicode standard). Although Hebrew is read and written from right to left, the following table shows the letters in order from left to right. The descriptions