1 Samuel 18:10

And it came to pass on the morrow that the evil spirit from God, 1 Samuel 16:13, came upon Saul, and he prophesied in the midst of the house, he raged and raved in madness; and David played with his hand, performed on the harp, as at other times; and there was a javelin, a small spear used as a scepter, in Saul's hand.