Only since the appearance of Dalman’s Grammar of Jewish Palestinian Aramaic in 1894 have we really known what was the dialect in which the Beatitudes of the Sermon on the Mount were spoken. This work closes a discussion which had been proceeding for centuries on a line parallel to that of theology proper, and which, according to the clear description of Arnold Meyer, ran its course somewhat as follows.(188) The question regarding the language spoken by Jesus had been vigorously discussed in the sixteenth century. Up till that time no one had known what to make of the tradition recorded by Eusebius that the speech of the apostles had been “Syrian” since the distinction between Syrian, Hebrew, and “Chaldee” was not understood and all three designations were used indiscriminately. Light was first thrown upon the question by Joseph Justus Scaliger († 1609). In the year 1555, Joh. Alb. Widmanstadt, Chancellor of Ferdinand I., had published the Syriac translation of the Bible in fulfilment of the wishes of an old scholar of Bologna, Theseus Ambrosius, who had left him the manuscript as a sacred legacy. He himself and his contemporaries believed that in this they had the Gospel in the mother‐tongue of Jesus, until Scaliger, in one of his letters, gave a clear sketch of the Syrian dialects, distinguished Syriac from Chaldee, and further drew a distinction between the Babylonian Chaldee and Jewish Chaldee of the Targums, and in the language of the Targums itself distinguished an earlier from a later stratum. The apostles spoke, according to Scaliger, a Galilaean dialect of Chaldaic, or according to the more correct nomenclature introduced later, following a suggestion of Scaliger’s, a dialect of Aramaic, and, in addition to that, the Syriac of Antioch. Next, Hugo Grotius put in a strong plea for a distinction between Jewish and Antiochian Syriac. Into the confusion caused at that time by the use of the term “Hebrew” some order was introduced by the Leyden Calvinistic professor Claude Saumaise, who, writing in French, emphasised the point that the New Testament, and the Early Fathers, when they speak of Hebrew, mean Syriac, since Hebrew had become completely unknown to the Jews of that period. Brian Walton, the editor of the London polyglot, which was completed in 1657, supposed that the dialect of Onkelos and Jonathan was the language of Jesus, being under the impression that both these Targums were written in the time of Jesus.