Fourth Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
19:6dixitque eis Esaias haec dicetis domino vestro haec dicit Dominus noli timere a facie sermonum quos audisti quibus blasphemaverunt pueri regis Assyriorum me
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.