KJV:
And if any man obey not our word by this epistle, note that man, and have no company with him, that he may be ashamed.
NASB:
If anyone does not obey our instruction in this letter, take special note of that person and do not associate with him, so that he will be put to shame.
KJV:
The salutation of Paul with mine own hand, which is the token in every epistle: so I write.
NASB:
I, Paul, write this greeting with my own hand, and this is a distinguishing mark in every letter; this is the way I write.
KJV:
This second epistle, beloved, I now write unto you; in both which I stir up your pure minds by way of remembrance:
NASB:
This is now, beloved, the second letter I am writing to you in which I am stirring up your sincere mind by way of reminder,
KJV:
As also in all his epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, unto their own destruction.
NASB:
as also in all his letters, speaking in them of these things, in which are some things hard to understand, which the untaught and unstable distort, as they do also the rest of the Scriptures, to their own destruction.