New International Version (NIV)
18I warn everyone who hears the words of the prophecy of this scroll: If anyone adds anything to them, God will add to that person the plagues described in this scroll.
Revelation 22:18
Revelation 22:18 in 6 English translations. Each links through to the full chapter for context.
New American Standard Bible - NASB (NASB2020)
18I testify to everyone who hears the words of the prophecy of this book: if anyone adds to them, God will add to him the plagues that are written in this book;
New American Standard Bible - NASB 1995 (NASB1995)
18I testify to everyone who hears the words of the prophecy of this book: if anyone adds to them, God will add to him the plagues which are written in this book;
Amplified Bible (AMP)
18I testify and warn everyone who hears the words of the prophecy of this book [its predictions, consolations, and admonitions]: if anyone adds [anything] to them, God will add to him the plagues (afflictions, calamities) which are written in this book; [Deut 4:2]
Berean Standard Bible (BSB)
18I testify to everyone who hears the words of prophecy in this book: If anyone adds to them, God will add to him the plagues described in this book.
New International Reader’s Version (NIrV)
18I am warning everyone who hears the words of the prophecy of this book. Suppose someone adds anything to them. Then God will add to that person the plagues told about in this book.