4 Then a champion named Goliath, who was from Gath, came out from the Philistine camp. He was six cubits and a span in height,17:4 Goliath was approximately 9 feet 9 inches or 297 centimeters tall; LXX, DSS, and Josephus four cubits and a span in height (approximately 6 feet 9 inches or 206 centimeters tall).
33 But Saul replied, "You cannot go out against this Philistine to fight him. You are just a boy, and he has been a warrior from his youth."
37 David added, "The LORD, who delivered me from the claws of the lion and the bear, will deliver me from the hand of this Philistine."
"Go," said Saul, "and may the LORD be with you."
40 And David took his staff in his hand, selected five smooth stones from the brook, and put them in the pouch of his shepherd’s bag. And with his sling in hand, he approached the Philistine.
45 But David said to the Philistine, "You come against me with sword and spear and javelin, but I come against you in the name of the LORD of Hosts, the God of the armies of Israel, whom you have defied.
49 Then David reached into his bag, took out a stone, and slung it, striking the Philistine on the forehead. The stone sank into his forehead, and he fell facedown on the ground.