The Book of Jasher - Quoted in the Old Testament - Held in high regard by Mormons - - - The Book Of Jasher, or Sefer Ha Yashar, is referred to in the books of Joshua and Second Samuel of the Holy Bible. "Behold it is written in the Book of Jasher."--II Samuel, i. 18 "Is not this written in the Book of Jasher?"--Joshua, x. 13. Jasher (Yashar) is a Hebrew word meaning "upright". Jasher is not the name of the author or any prophet or judge of Israel, as scholars had previously thought. The name refers to the fact that the record, facts, and history are upright, correct, and thus, trustworthy. The value of The Book of Jasher is seen in the large quantity of additional detail revealed in the period between divine creation and the time of Joshua's leadership over Israel when the Israelites enter into the land of Canaan. The Book of Jasher includes details about the antediluvian patriarchs, angels, watchers, the flood, the tower of Babel, and many other events mentioned in the Bible. The tales are expanded and infused with detail not previously available. This means we receive insight into the lives of Abraham, Noah, Enoch, Joseph, and many other biblical figures. We come to understand how they became great and why they acted as they did. We are also given hitherto unknown knowledge of historical events. We are shown how God's hand shaped history through his love and anger. We see how his disappointment with men and angels ended in earth's near total destruction.