1 Samuel 17:50-51

New American Standard Bible

⁵⁰ So 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. ⁵¹ Then David ran and stood over the Philistine, and ^(A)took his sword and drew it out of its sheath and finished him, and cut off his head with it. ^(B)When the Philistines saw that their champion was dead, they fled.