KJV: And David girded his sword upon his armour, and he assayed to go; for he had not proved it. And David said unto Saul, I cannot go with these; for I have not proved them. And David put them off him.
NASB: David girded his sword over his armor and tried to walk, for he had not tested them. So David said to Saul, "I cannot go with these, for I have not tested them." And David took them off.
KJV: So David prevailed over the Philistine with a sling and with a stone, and smote the Philistine, and slew him; but there was no sword in the hand of David.
NASB: Thus David prevailed over the Philistine with a sling and a stone, and he struck the Philistine and killed him; but there was no sword in David's hand.
KJV: Then the princes of the Philistines went forth: and it came to pass, after they went forth, that David behaved himself more wisely than all the servants of Saul; so that his name was much set by.
NASB: Then the commanders of the Philistines went out to battle, and it happened as often as they went out, that David behaved himself more wisely than all the servants of Saul. So his name was highly esteemed.
KJV: And when the lad was come to the place of the arrow which Jonathan had shot, Jonathan cried after the lad, and said, Is not the arrow beyond thee?
NASB: When the lad reached the place of the arrow which Jonathan had shot, Jonathan called after the lad and said, "Is not the arrow beyond you?"
KJV: And Nob, the city of the priests, smote he with the edge of the sword, both men and women, children and sucklings, and oxen, and asses, and sheep, with the edge of the sword.
NASB: And he struck Nob the city of the priests with the edge of the sword, both men and women, children and infants; also oxen, donkeys, and sheep he struck with the edge of the sword.
KJV: See therefore, and take knowledge of all the lurking places where he hideth himself, and come ye again to me with the certainty, and I will go with you: and it shall come to pass, if he be in the land, that I will search him out throughout all the thousands of Judah.
NASB: "So look, and learn about all the hiding places where he hides himself and return to me with certainty, and I will go with you; and if he is in the land, I will search him out among all the thousands of Judah."
KJV: And he said unto his men, The LORD forbid that I should do this thing unto my master, the LORD'S anointed, to stretch forth mine hand against him, seeing he is the anointed of the LORD.
NASB: So he said to his men, "Far be it from me because of the LORD that I should do this thing to my lord, the LORD'S anointed, to stretch out my hand against him, since he is the LORD'S anointed."