So on the day of the battle neither sword nor spear was to be found in the possession of any of the people with Saul and Jonathan, but Saul and his son Jonathan had them.
David strapped Saul’s sword over the armor, and he tried in vain to walk, for he was not used to them. Then David said to Saul, “I cannot walk with these, for I am not used to them.” So David removed them.
David put his hand in his bag, took out a stone, slung it, and struck the Philistine on his forehead; the stone sank into his forehead, and he fell face down on the ground.
Then David ran and stood over the Philistine; he grasped his sword, drew it out of its sheath, and killed him; then he cut off his head with it. When the Philistines saw that their champion was dead, they fled.
for he took his life in his hand when he attacked the Philistine, and the Lord brought about a great victory for all Israel. You saw it and rejoiced; why then will you sin against an innocent person by killing David without cause?”
The priest said, “The sword of Goliath the Philistine, whom you killed in the valley of Elah, is here wrapped in a cloth behind the ephod; if you will take that, take it, for there is none here except that one.” David said, “There is none like it; give it to me.”