Revelation 22:6–21 forms the epilogue to the Revelation that Jesus Christ had shown to John. This last subsection uses the reality of Christ’s pending return to underscore for the readers the need to take very seriously every word of the revelation Christ Jesus gave them through John. As the final paragraph of this revelation, it is a fitting way to conclude.
18 I warn everyone who hears the words of the prophecy of this book: if anyone adds to them, God will add to him the plagues described in this book,