1 Samuel 18:9-13

And Saul eyed David with suspicion from that day on. Saul Turns against David

Now it came about on the next day that an evil spirit from God rushed upon Saul, and he raved in the midst of the house while David was playing the harp with his hand, as usual; and a spear was in Saul’s hand.

Then Saul hurled the spear, for he thought, “I will pin David to the wall.” But David escaped from his presence, twice.

Now Saul was afraid of David, because the Lord was with him but had left Saul.

So Saul removed him from his presence and appointed him as his commander of a thousand; and he went out and came in before the people.