KJV:
Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city.
NASB:
Blessed are those who wash their robes, so that they may have the right to the tree of life, and may enter by the gates into the city.
KJV:
And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book.
NASB:
and if anyone takes away from the words of the book of this prophecy, God will take away his part from the tree of life and from the holy city, which are written in this book.