2 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
6:15Thou which hast kept with thy servant David my father that which thou hast promised him; and spakest with thy mouth, and hast fulfilled it with thine hand, as it is this day.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.