'Evil Spirit From God' in the Bible

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

Let our lord now command your servants who are here before you to find a man who plays skillfully on the harp; and when the evil spirit from God is on you, he shall play the harp with his hand, and you will be well.”

So it came about that whenever the [evil] spirit from God was on Saul, David took a harp and played it with his hand; so Saul would be refreshed and be well, and the evil spirit would leave him.

Now it came about on the next day that an evil spirit from God came forcefully on Saul, and he raved [madly] inside his house, while David was playing the harp with his hand, as usual; and there was a spear in Saul’s hand.