1 Samuel 18
Saul's Jealousy of David
8 Saul was very angry; this refrain galled him. "They have credited David with tens of thousands," he thought, "but me with only thousands. What more can he get but the kingdom?" 9 And from that time on Saul kept a jealous eye on David.
10 The next day an evil spirit from God came forcefully upon Saul. He was prophesying in his house, while David was playing the harp, as he usually did. Saul had a spear in his hand 11 and he hurled it, saying to himself, "I'll pin David to the wall." But David eluded him twice.