2 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
Chapter 18
33And the king was much moved, and went up to the upper chamber of the gate, and wept; and as he went, he said thus: O my son Absalom, my son, my son Absalom! would God I had died in thy stead, O Absalom, my son, my son!
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.