Second Book of Paralipomenon (Author Compiled by Isaias and Esdras from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
20:15And he said: Attend ye, all Juda, and you that dwell in Jerusalem, and thou king Josaphat: Thus saith the Lord to you: Fear ye not, and be not dismayed at this multitude: for the battle is not yours, but God's.
Original from Project Gutenberg - Massive cleanup of OCR problems and editing done locally.