1 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
29:9And the people rejoice because of their offering willingly, for with a perfect heart they have offered willingly to Jehovah; and also David the king hath rejoiced -- great joy.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.