1 Samuel 17:50-58

So David defeated the Philistine with only a sling and a stone. He hit him and killed him. He did not even have a sword in his hand. Then David ran and stood beside him. He took Goliath’s sword out of its holder and killed him by cutting off his head. When the Philistines saw that their champion was dead, they turned and ran. The men of Israel and Judah shouted and chased the Philistines all the way to the entrance of the city of Gath and to the gates of Ekron. The Philistines’ bodies lay on the Shaaraim road as far as Gath and Ekron. The Israelites returned after chasing the Philistines and robbed their camp. David took Goliath’s head to Jerusalem and put Goliath’s weapons in his own tent. When Saul saw David go out to meet Goliath, Saul asked Abner, commander of the army, “Abner, who is that young man’s father?” Abner answered, “As surely as you live, my king, I don’t know.” The king said, “Find out whose son he is.” When David came back from killing Goliath, Abner brought him to Saul. David was still holding Goliath’s head. Saul asked him, “Young man, who is your father?” David answered, “I am the son of your servant Jesse of Bethlehem.”