Book of Deuteronomy have given various answers to the problem. The Deuteronomistic history theory is currently the most popular (Deuteronomy was originally just the law code and covenant, written to cement the religious reforms of Josiah, and later expanded to stand as the introduction to the full history); but there is an older theory which sees Deuteronomy as belonging to Numbers, and Joshua as a sort of supplement to it. This idea still has supporters, but the mainstream understanding is that Deuteronomy, after becoming the introduction to the history, was later detached from it and included with Genesis-Exodus-Leviticus-Numbers because it already had Moses
August Dillmann ihrer politischen Wirksamkeit" (1868). In 1869 appeared his commentary on "Hiob", (4th edition 1891) which stamped him as one of the foremost Old Testament exegetes. His renown as a theologian was mainly founded on the series of commentaries, based on those of August Wilhelm Knobel's "Die Genesis" (Leipzig, 1875); "Die Bücher Exodus und Leviticus", 1880; "Die Bücher Numeri, Deuteronomium und Josua", with a dissertation on the origin of the Hexateuch, 1886; "Der Prophet Jesaja", 1890. In 1877 he published the "Ascension of Isaiah" in Ethiopian and Latin. He was also a contributor to Daniel Schenkel's "Bibellexikon", Brockhaus's "Conversationslexikon", and Johann