44. The four preceding arguments suggest the concluding and most important one. The character of the writings of the Pentateuch preclude the possibility of unity of authorship, and consequently the Mosaic authorship of the work as a whole. The books of the Pentateuch were not all composed by one author. The book of Genesis is not the work of one author. The first two chapters of Genesis were not written by the same writer. The Pentateuch was written by various writers and at various times. The Pentateuch comprises four large documents known as the Elohistic and Jehovistic documents, and the Deuteronomic and Priestly Codes. They are distinguished by the initial letters E, J, D, and P. E and J include the greater portion of Genesis and extend through the other books of the Pentateuch, as well as through Joshua, Judges, Samuel, and Kings. D includes the greater portion of Deuteronomy, fragments of the preceding books, and a large portion of Joshua. P includes the greater portion of the middle books of the Pentateuch and smaller portions of the other books. The author of each of these documents incorporated into his work one or more older documents. These four works were afterwards united by successive editors or redactors. E and J were first fused into one. A subsequent redactor united D with this, and still later another united this compilation with P. In addition to these principal documents there are several minor codes, chief of which is the Holiness Code comprising ten chapters of Leviticus, xvii-xxvi. There are also several poems written by various authors. Thus the Pentateuch instead of being the product of one mind is the work of many writers and compilers, probably twenty or more. These documents, especially the principal ones, notwithstanding the intermingling of their contents, are easily distinguished and separated from each other by Bible critics. The thoughts of the human mind, like the features of the human face, controlled by the law of variation, assume different forms. We who are familiar with faces have no difficulty in distinguishing one face from another. No two faces are alike. Critics who have devoted their lives to literature can distinguish the writings of individuals almost as readily as we distinguish the faces of individuals. There are certain idioms of language, certain peculiarities of style, belonging to each writer. The language and style of these documents are quite dissimilar. To quote Dr. Briggs: "There is as great a difference in style between the documents of the Hexateuch as there is between the Four Gospels." The principal documents are thus described by this critic: