1 Samuel 17:49-51

Common English Bible

⁴⁹ David put his hand in his bag and took out a stone. He slung it, and it hit the Philistine on his forehead. The stone penetrated his forehead, and he fell facedown on the ground. ⁵⁰ And that’s how David triumphed over the Philistine with just a sling and a stone, striking the Philistine down and killing him—and David didn’t even have a sword! ⁵¹ Then David ran and stood over the Philistine. He grabbed the Philistine’s sword, drew it from its sheath, and finished him off. Then David cut off the Philistine’s head with the sword.

When the Philistines saw that their hero was dead, they fled.