Book of Numbers twelve princes, one of each tribe. The majority of modern biblical scholars believe that the Torah (the books of Genesis, Exodus, Leviticus, Numbers, and Deuteronomy) reached its present form in the post-Exilic period (i.e., after c.520 BCE), based on pre-existing written and oral traditions and "contemporary geographical and demographic details but even more importantly from contemporary political realities". The five books are often described as being drawn from four "sources" - schools of writers rather than individuals - the Yahwist and the Elohist (frequently treated as a single source), the Priestly source and the Deuteronomist. There is ongoing dispute over
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