The gospel itself does not specify an author, but he was probably a male Jew, standing on the margin between traditional and non-traditional Jewish values, and familiar with technical legal aspects of scripture being debated in his time.[5] The majority of modern scholars believe that Mark was the first gospel to be composed and that Matthew (who includes some 600 of Mark's 661 verses) and Luke both drew upon it as a major source for their works.[15][16] The author of Matthew did not, however, simply copy Mark, but used it as a base, emphasising Jesus' place in the Jewish tradition and including other details not covered in Mark.[17] An additional 220 (approximately) verses, shared by Matthew and Luke but not found in Mark, from a second source, a hypothetical collection of sayings to which scholars give the name "Quelle" ("source" in the German language), or the Q source.[18] This view, known as the Two-source hypothesis (Mark and Q), allows for a further body of tradition known as "Special Matthew", or the M source, meaning material unique to Matthew; this may represent a separate source, or it may come from the author's church, or he may have composed these verses himself.[16] The author also had the Greek scriptures at his disposal, both as book-scrolls (Greek translations of Isaiah, the Psalms etc.) and in the form of "testimony collections" (collections of excerpts), and, if Papias is correct, probably oral stories of his community.[19] These sources were predominantly in Greek,[20] but mostly not from any known version of the Septuagint;[21] although a few scholars hold that some of them may have been Greek translations of older Hebrew or Aramaic sources.[22][23]