KJV: Or all that about which he hath sworn falsely; he shall even restore it in the principal, and shall add the fifth part more thereto, and give it unto him to whom it appertaineth, in the day of his trespass offering.
NASB: or anything about which he swore falsely; he shall make restitution for it in full and add to it one-fifth more. He shall give it to the one to whom it belongs on the day he presents his guilt offering.
KJV: Now David had said, Surely in vain have I kept all that this fellow hath in the wilderness, so that nothing was missed of all that pertained unto him: and he hath requited me evil for good.
NASB: Now David had said, "Surely in vain I have guarded all that this man has in the wilderness, so that nothing was missed of all that belonged to him; and he has returned me evil for good.
KJV: Otherwise I should have wrought falsehood against mine own life: for there is no matter hid from the king, and thou thyself wouldest have set thyself against me.
NASB: "Otherwise, if I had dealt treacherously against his life (and there is nothing hidden from the king), then you yourself would have stood aloof."