1 Samuel 16:21-23

ISV(i) 21 David went to Saul and began to serve him. Saul loved him very much, and he became his armor bearer. 22 Saul sent a messenger to Jesse to tell him, “Allow David to serve me, because I’m pleased with him.” 23 Whenever an evil spirit from God came to Saul, David would take the lyre and play it. Relief would come to Saul and he would be better, because the evil spirit would leave him.