KJV: When he shall come to be glorified in his saints, and to be admired in all them that believe (because our testimony among you was believed) in that day.
NASB: when He comes to be glorified in His saints on that day, and to be marveled at among all who have believed-- for our testimony to you was believed.
KJV: That ye be not soon shaken in mind, or be troubled, neither by spirit, nor by word, nor by letter as from us, as that the day of Christ is at hand.
NASB: that you not be quickly shaken from your composure or be disturbed either by a spirit or a message or a letter as if from us, to the effect that the day of the Lord has come.
KJV: Neither did we eat any man's bread for nought; but wrought with labour and travail night and day, that we might not be chargeable to any of you:
NASB: nor did we eat anyone's bread without paying for it, but with labor and hardship we kept working night and day so that we would not be a burden to any of you;
KJV: For the which cause I also suffer these things: nevertheless I am not ashamed: for I know whom I have believed, and am persuaded that he is able to keep that which I have committed unto him against that day.
NASB: For this reason I also suffer these things, but I am not ashamed; for I know whom I have believed and I am convinced that He is able to guard what I have entrusted to Him until that day.
KJV: The Lord grant unto him that he may find mercy of the Lord in that day: and in how many things he ministered unto me at Ephesus, thou knowest very well.
NASB: the Lord grant to him to find mercy from the Lord on that day-- and you know very well what services he rendered at Ephesus.
KJV: Henceforth there is laid up for me a crown of righteousness, which the Lord, the righteous judge, shall give me at that day: and not to me only, but unto all them also that love his appearing.
NASB: in the future there is laid up for me the crown of righteousness, which the Lord, the righteous Judge, will award to me on that day; and not only to me, but also to all who have loved His appearing.