The Book Of Jasher

The Book of Jasher (also, Jashar) or the Book of the Upright or the Book of the Just Man is mentioned in the Hebrew Bible. The translation "Book of the Just Man" is the traditional Greek and Latin translation, while the transliterated form "Jasher" is found in the King James Bible, 1611. According to the Medieval Jewish scholar Rashi, Sefer HaYashar refers to the Pentateuch, as a fulfillment of Jacob's prophecy regarding Ephraim His seed will fill the nations (Gen. 48:19) and that this prophecy refers to Joshua's renown after the miracle of the standing of the sun