Fourth Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
20:6And I will add to thy days fifteen years: and I will deliver thee and this city out of the hand of the king of the Assyrians, and I will protect this city for my own sake, and for David, my servant's sake.
Original from Project Gutenberg - Massive cleanup of OCR problems and editing done locally.