KJV: This day will the LORD deliver thee into mine hand; and I will smite thee, and take thine head from thee; and I will give the carcases of the host of the Philistines this day unto the fowls of the air, and to the wild beasts of the earth; that all the earth may know that there is a God in Israel.
NASB: "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,
KJV: Therefore David ran, and stood upon 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 their champion was dead, they fled.
NASB: 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.
KJV: And as David returned from the slaughter of the Philistine, Abner took him, and brought him before Saul with the head of the Philistine in his hand.
NASB: So when David returned from killing the Philistine, Abner took him and brought him before Saul with the Philistine's head in his hand.
KJV: And when David heard that Nabal was dead, he said, Blessed be the LORD, that hath pleaded the cause of my reproach from the hand of Nabal, and hath kept his servant from evil: for the LORD hath returned the wickedness of Nabal upon his own head. And David sent and communed with Abigail, to take her to him to wife.
NASB: When David heard that Nabal was dead, he said, "Blessed be the LORD, who has pleaded the cause of my reproach from the hand of Nabal and has kept back His servant from evil. The LORD has also returned the evildoing of Nabal on his own head." Then David sent a proposal to Abigail, to take her as his wife.
KJV: And the princes of the Philistines were wroth with him; and the princes of the Philistines said unto him, Make this fellow return, that he may go again to his place which thou hast appointed him, and let him not go down with us to battle, lest in the battle he be an adversary to us: for wherewith should he reconcile himself unto his master? should it not be with the heads of these men?
NASB: But the commanders of the Philistines were angry with him, and the commanders of the Philistines said to him, "Make the man go back, that he may return to his place where you have assigned him, and do not let him go down to battle with us, or in the battle he may become an adversary to us. For with what could this man make himself acceptable to his lord? Would it not be with the heads of these men?
KJV: And they cut off his head, and stripped off his armour, and sent into the land of the Philistines round about, to publish it in the house of their idols, and among the people.
NASB: They cut off his head and stripped off his weapons, and sent them throughout the land of the Philistines, to carry the good news to the house of their idols and to the people.