'Words of This Book' in the Bible

“Look, I am coming quickly! The one who keeps the prophetic words of this book is blessed.”

And he saith unto me, See thou do it not: I am a fellow-servant with thee and with thy brethren the prophets, and with them that keep the words of this book: worship God.

He also said to me, “Don’t seal the prophetic words of this book, because the time is near.

I testify to everyone who hears the prophetic words of this book: If anyone adds to them, God will add to him the plagues that are written in this book.

And if anyone takes away from the words of this book of prophecy, God will take away his share of the tree of life and from the holy city that are written in this book.