KJV:
Which have borne witness of thy charity before the church: whom if thou bring forward on their journey after a godly sort, thou shalt do well:
NASB:
and they have testified to your love before the church. You will do well to send them on their way in a manner worthy of God.
KJV:
Mercy unto you, and peace, and love, be multiplied.
NASB:
May mercy and peace and love be multiplied to you.
KJV:
These are spots in your feasts of charity, when they feast with you, feeding themselves without fear: clouds they are without water, carried about of winds; trees whose fruit withereth, without fruit, twice dead, plucked up by the roots;
NASB:
These are the men who are hidden reefs in your love feasts when they feast with you without fear, caring for themselves; clouds without water, carried along by winds; autumn trees without fruit, doubly dead, uprooted;
KJV:
Keep yourselves in the love of God, looking for the mercy of our Lord Jesus Christ unto eternal life.
NASB:
keep yourselves in the love of God, waiting anxiously for the mercy of our Lord Jesus Christ to eternal life.