1 Samuel 17:49-51

Revised Geneva Translation

⁴⁹ And David put his hand in his bag and took out a stone and slang it and struck the Philistine in his forehead, so that the stone stuck in his forehead. And he fell to the earth, groveling.

⁵⁰ So David overcame the Philistine with a sling and with a stone, and struck the Philistine and killed him, when David had no sword in his hand.

⁵¹ Then David ran and stood upon the Philistine and took his sword and drew it out of his sheath and killed him and cut off his head with it. So, when the Philistines saw that their champion was dead, they fled.