1 Samuel 17:45-58

Then David said to the Philistine, “You come to me with a sword, a spear, and a javelin, but I come to you in the name of the LORD of hosts, the God of the armies of Israel, whom you have taunted. This day the LORD will deliver you up into my hands, and I will strike you down and remove your head from you. And I will give the dead bodies of the army of the Philistines this day to the birds of the sky and the wild beasts of the earth, that all the earth may know that there is a God in Israel, and that all this assembly may know that the LORD does not deliver by sword or by spear; for the battle is the LORD’S and He will give you into our hands.” Then it happened when the Philistine rose and came and drew near to meet David, that David ran quickly toward the battle line to meet the Philistine. And 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 sank into his forehead, so that he fell on his face to the ground. Thus David prevailed over the Philistine with a sling and a stone, and he struck the Philistine and killed him; but there was no sword in David’s hand. Then David ran and stood over the Philistine and took his sword and drew it out of its sheath and killed him, and cut off his head with it. When the Philistines saw that their champion was dead, they fled. The men of Israel and Judah arose and shouted and pursued the Philistines as far as the valley, and to the gates of Ekron. And the slain Philistines lay along the way to Shaaraim, even to Gath and Ekron. The sons of Israel returned from chasing the Philistines and plundered their camps. Then David took the Philistine’s head and brought it to Jerusalem, but he put his weapons in his tent. Now when Saul saw 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.” The king said, “You inquire whose son the youth is.” So when David returned from killing the Philistine, Abner took him and brought him before Saul with the Philistine’s head in his hand. Saul said to him, “Whose son are you, young man?” And David answered, “I am the son of your servant Jesse the Bethlehemite.”