1 Samuel 18:9-11

Amplified Bible

⁹ Saul looked at David with suspicion [and jealously] from that day forward.

Saul Turns against David

¹⁰ 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. ¹¹ Saul hurled the spear, for he thought, “I will pin David to the wall.” But David evaded him twice.