Ancient Jewish tradition credits the authorship of the book of Job to Moses. The Babylonian Talmud claims, “Moses wrote his own book, and the passages about Balaam and Job” (Baba Bathra, 14b, 15a). But this claim is rejected by many modern scholars and instead they suggest that Elihu, Solomon, and Ezra could be the authors of the book. Others believe the book to be the work of an unnamed author, perhaps of the time of Solomon, or of the time of David, or of the era of the Captivity. However, these later claims don’t have enough evidence to support them.
But there is much support to the early assertion that credits the writing of the book of Job to Moses for he spent 40 years in the land of Median. This land would give him a good background of the land of Oz. Also, Moses’ Egyptian heritage explains the hints to Egyptian life and practice that appear in the book. Further, the image of God as Creator and Sustainer aliens well with the creation narrative that is presented in the book of Genesis which was written by Moses.
Crediting Moses for the authorship of the book of Job does not exclude the possibility that most of material may have already been there in a written form by Job himself. The scholars that attest to that base their claims on the fact that the subject matter of Job is much different from that of the other books of Moses.
Some scholars object to Mosaic authorship on the grounds of dissimilarity of style between Job and the other books attributed to Moses but this argument is a weak one because of the obvious parallels. For example, certain words used in the book of Job appear also in the Pentateuch, but nowhere else in the Old Testament; many other words common to both Job and the Pentateuch are seldom used by other Bible writers. Finally, the title ’El–Shaddai, “the Almighty” is used 31 times in the book of Job and 6 times in the book of Genesis, but doesn’t occur in this particular form anywhere else in the Bible.
In His service,