1 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
16:23And it came to pass, when the evil spirit from God was upon Saul, that David took an harp, and played with his hand: so Saul was refreshed, and was well, and the evil spirit departed from him.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.