1 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
6:3And they said, If ye send away the ark of the God of Israel, send it not empty; but in any wise return him a trespass offering: then ye shall be healed, and it shall be known to you why his hand is not removed from you.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.