Huckleberry, the story of Job was found in cuniform. It is one of the oldest biblical stories in the history of man. There are some biblical scholars who think that Job might actually be a pre-flood story that Noah taught. Throughout History man has reused names as an honorific or simply because they thought it was a nice name. Job was as far back as we can find in the written record of man, one of the first stories put into the written record, other than the great flood. It is for this reason, that Job was by far one of the most difficult books in the Bible when the Old Testament canon came together. Throughout the History of Judaism, there have been many who have disregarded the book, because it is not a Jewish story, while others have held it must be kept, because it shows the loving, eternal, and unchanging God that we all know.
When Christians came to the book of Job, the same debate raged and in some denominations still rages. However, whether it be a pre-flood legend that has come down to us from antiquity, or if it be a Sumerian legend, it stands as one of the first stories of our God and of our enemy, and it intrinsically teaches us the truth of our Father in Heaven. Just because it predates Abraham, it is still a story about a righteous man and the God who loved him.