1 Samuel 18:7, 12-14

As they danced, they sang: “Saul has slain his thousands, and David his tens of thousands.”

Saul was afraid of David, because the LORD was with David but had departed from Saul. So he sent David away from him and gave him command over a thousand men, and David led the troops in their campaigns. In everything he did he had great success, because the LORD was with him.