Dating the Old Testament addresses the subject of when the books of the Bible were written. It explains why the books of Genesis through Deuteronomy are a literary unity, and how the Egyptian background for these books support a date of writing during the exodus generation. It provides a detailed critique of the Documentary Hypothesis, the theory that Genesis through Joshua were created from four different sources usually labelled J, E, D, and P. It provides extensive evidence that all of Isaiah was written by Isaiah himself, and shows why Isaiah may have had a role in the collection and publication of other Old Testament books. It describes why the book of Daniel should be considered a product of the early Persian era and not the much later Maccabean period. The book contains a discussion of how the Hebrew language changed during the Old Testament era, and how this can be used to help date the books of the Old Testament.