1 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
26:21And Saul saith, `I have sinned; turn back, my son David, for I do evil to thee no more, because that my soul hath been precious in thine eyes this day; lo, I have acted foolishly, and do err very greatly.'
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.