1 Samuel 16:13-17

So Samuel took the horn of oil and anointed him in the midst of his brothers; and the Spirit of the Lord rushed upon David from that day forward. And Samuel set out and went to Ramah.

Now the Spirit of the Lord left Saul, and an evil spirit from the Lord terrified him.

Saul’s servants then said to him, “Behold now, an evil spirit from God is terrifying you.

May our lord now command your servants who are before you. Have them search for a man who is a skillful musician on the harp; and it shall come about whenever the evil spirit from God is upon you, that he shall play the harp with his hand, and you will become well.”

So Saul said to his servants, “Now select for me a man who can play well, and bring him to me.”