1 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
21:8and David saith unto God, `I have sinned exceedingly, in that I have done this thing; and now, cause to pass away, I pray Thee, the iniquity of Thy servant, for I have acted very foolishly.'
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.