There is a chiastic structure to the book of Job that begins with the prologue and ends with the epilogue. In a chiasm, the middle portion is a convenient hinge of the book, it is not necessarily the most important piece of textual material. The main question the book is asking is, where do you find wisdom? The answer is, wisdom is found in the LORD. Proverbs is monological wisdom, whereas Job is dialogical wisdom. People are debating back and forth throughout the book about the nature of wisdom.