Jasher
   upright. "The Book of Jasher," rendered in the LXX. "the Book of
   the Upright One," by the Vulgate "the Book of Just Ones," was
   probably a kind of national sacred song-book, a collection of
   songs in praise of the heroes of Israel, a "book of golden
   deeds," a national anthology. We have only two specimens from
   the book, (1) the words of Joshua which he spake to the Lord at
   the crisis of the battle of Beth-horon (Josh. 10:12, 13); and
   (2) "the Song of the Bow," that beautiful and touching mournful
   elegy which David composed on the occasion of the death of Saul
   and Jonathan (2 Sam. 1:18-27).
   

Jasher, righteous; upright