Second Book of Paralipomenon (Author Compiled by Isaias and Esdras from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
20:17non eritis vos qui dimicabitis sed tantummodo confidenter state et videbitis auxilium Domini super vos o Iuda et Hierusalem nolite timere nec paveatis cras egredimini contra eos et Dominus erit vobiscum
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.