And, Revelation 22:18-19 says...
18 For[
i] I testify to everyone who hears the words of the prophecy of this book: If anyone adds to these things, God will add[
j] to him the plagues that are written in this book; 19 and if anyone takes away from the words of the book of this prophecy, God shall take away[
k] his part from the Book[
l] of Life, from the holy city, and
from the things which are written in this book.
So why would such a thing be said if no one ever was going to do it? Think deeply about those two verses.