Berean Study Bible (BSB) - 1 Samuel 17:51 >

David ran and stood over him. He grabbed the Philistine’s sword and pulled it from its sheath and killed him; and he cut off his head with the sword. When the Philistines saw that their hero was dead, they turned and ran.

Jewish Publication Society of America Version (JPS1917) - 1 Samuel 17:51 >

And David ran, and stood over the Philistine, and took his sword, and drew it out of the sheath thereof, and slew him, and cut off his head therewith. And when the Philistines saw that their mighty man was dead, they fled.