Also known as the “Book of the Upright One” in the Greek Septuagint and the “Book of the Just Ones” in the Latin Vulgate, the Book of Jasher was probably a collection or compilation of ancient Hebrew songs and poems praising the heroes of Israel and their exploits in battle. The Book of Jasher is mentioned in Joshua 10:12-13 when the Lord stopped the sun in the middle of the day during the battle of Beth Horon. It is also mentioned in 2 Samuel 1:18-27 as containing the Song or Lament of the Bow, that mournful funeral song which David composed at the time of the death of Saul and Jonathan.