Fourth Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
Chapter 19
20And Isaias, the son of Amos, sent to Ezechias, saying: Thus saith the Lord, the God of Israel: I have heard the prayer thou hast made to me concerning Sennacherib, king of the Assyrians.
Original from Project Gutenberg - Massive cleanup of OCR problems and editing done locally.