This work provides a range of information, previously unpublished, essential to the study of the Peshitta Gospel text as a translation of the Greek and as a literary work in its own right. It is designed to serve both scholar and student.

The Key, in which each word is classified according to its Syriac root, provides (a.) a complete analytical concordance, (b.) the notation of the part of speech for each principal Syriac term, (c.) an English translation of each word cited corresponding to its use in the Peshitta Gospels, (d.) Syriac words of similar meaning, (e.) the corresponding Greek term for each Syriac term, (f.) an English index, and (g.) a directory at the end of the work to facilitate the swift location of the Syriac word being sought.

The Key can be used as a concordance, lexicon, thesaurus, or resource for the critical investigation of the Syriac text of the Peshitta Gospels.