1 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
21:13And David said to Gad, I am in a great strait: let me fall, I pray thee, into the hand of Jehovah, for his mercies are very great; but let me not fall into the hand of man.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.