For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book:
Berean Study Bible (BSB) - Revelation 22:18 >I 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.
Textus Receptus (TR) - Revelation 22:18 >Συμμαρτυροῦμαι γὰρ παντὶ ἀκούοντι τοὺς λόγους τῆς προφητείας τοῦ βιβλίου τούτου, ἐάν τις ἐπιτιθῇ πρὸς ταῦτα, ἐπιθήσει ὁ Θεὸς ἐπ᾿ αὐτὸν τὰς πληγὰς τὰς γεγραμμένας ἐν βιβλίῳ τούτῳ·