1 Samuel 17:48-58

⁴⁸Then it happened, when the Philistine came closer to meet David, that David ran quickly toward the battle line to meet the Philistine. ⁴⁹And David put his hand into his bag and took from it a stone and slung it, and struck the Philistine on his forehead. And the stone penetrated his forehead, and he fell on his face to the ground.

⁵⁰So David prevailed over the Philistine with the sling and the stone: he struck the Philistine and killed him, and there was no sword in David’s hand. ⁵¹Then David ran and stood over the Philistine, and took his sword and drew it out of its sheath and finished him, and cut off his head with it. When the Philistines saw that their champion was dead, they fled. ⁵²Then the men of Israel and Judah rose up and shouted, and they pursued the Philistines as far as the valley, and to the gates of Ekron. And the Philistine dead lay along the way to Shaaraim, even to Gath and Ekron. ⁵³Then the sons of Israel returned from their close pursuit of the Philistines, and plundered their camps. ⁵⁴And David took the Philistine’s head and brought it to Jerusalem, but he put his weapons in his tent.

⁵⁵Now when Saul had seen David going out against the Philistine, he said to Abner the commander of the army, “Abner, whose son is this young man?” And Abner said, “By your life, O king, I do not know.” ⁵⁶And the king said, “You then, ask whose son the youth is.” ⁵⁷So when David returned from killing the Philistine, Abner took him and brought him before Saul with the Philistine’s head in his hand. ⁵⁸Then Saul said to him, “Whose son are you, young man?” And David answered, “I am the son of your servant Jesse the Bethlehemite.”