1 Samuel 18:7-9

Living Bible

⁷ However, this was their song: “Saul has slain his thousands, and David his ten thousands!”

⁸ Of course Saul was very angry. “What’s this?” he said to himself. “They credit David with ten thousands and me with only thousands. Next they’ll be making him their king!”

⁹ So from that time on King Saul kept a jealous watch on David.