What can anyone tell me about the book of Jasher? The book of Jasher is mentioned in the Old testament 3 times I think. Was this book a prophesy of a book that was not yet written or was it lost along the way. I found it online, some say that it was re-written and is not authentic now. Could it be that it was a prophesy that the book would be written. It seems that Jasher is the first few books of the Old Testament with more detail. I think it was just simplified down to Genesis, Exodus, and Leviticus from the bigger text. Input?