KJV: Therefore now let your hands be strengthened, and be ye valiant: for your master Saul is dead, and also the house of Judah have anointed me king over them.
NASB: "Now therefore, let your hands be strong and be valiant; for Saul your lord is dead, and also the house of Judah has anointed me king over them."
KJV: And they caught every one his fellow by the head, and thrust his sword in his fellow's side; so they fell down together: wherefore that place was called Helkathhazzurim, which is in Gibeon.
NASB: Each one of them seized his opponent by the head and thrust his sword in his opponent's side; so they fell down together. Therefore that place was called Helkath-hazzurim, which is in Gibeon.
KJV: Now there was long war between the house of Saul and the house of David: but David waxed stronger and stronger, and the house of Saul waxed weaker and weaker.
NASB: Now there was a long war between the house of Saul and the house of David; and David grew steadily stronger, but the house of Saul grew weaker continually.
KJV: Let it rest on the head of Joab, and on all his father's house; and let there not fail from the house of Joab one that hath an issue, or that is a leper, or that leaneth on a staff, or that falleth on the sword, or that lacketh bread.
NASB: "May it fall on the head of Joab and on all his father's house; and may there not fail from the house of Joab one who has a discharge, or who is a leper, or who takes hold of a distaff, or who falls by the sword, or who lacks bread."
KJV: And he said, If the Syrians be too strong for me, then thou shalt help me: but if the children of Ammon be too strong for thee, then I will come and help thee.
NASB: He said, "If the Arameans are too strong for me, then you shall help me, but if the sons of Ammon are too strong for you, then I will come to help you.
KJV: Be of good courage, and let us play the men for our people, and for the cities of our God: and the LORD do that which seemeth him good.
NASB: "Be strong, and let us show ourselves courageous for the sake of our people and for the cities of our God; and may the LORD do what is good in His sight."
KJV: Then David said unto the messenger, Thus shalt thou say unto Joab, Let not this thing displease thee, for the sword devoureth one as well as another: make thy battle more strong against the city, and overthrow it: and encourage thou him.
NASB: Then David said to the messenger, "Thus you shall say to Joab, 'Do not let this thing displease you, for the sword devours one as well as another; make your battle against the city stronger and overthrow it'; and so encourage him."