^1:11 saying, “Write on a scroll what you see, and send it to the seven churches: Ephesus, Smyrna, Pergamum, Thyatira, Sardis, Philadelphia, and Laodicea.”

saying,

“Write on a scroll what you see,

The trumpet-like voice behind John tells him to "Write a book (this Revelation) of what he sees. He includes throughout what he hears; but it should not be mistaken that this is coming from John's imagination. It isn't. He actually saw it while in the Spirit.

At the end of Revelation, John testifies/verifies that he did as he was told (Revelation 22:18-19).

On a philosophic note: This book, "The Revelation of Jesus Christ" concludes this edition of the existence of mankind not unlike Moses' book, Genesis, is a book of the beginning of this existance. The Genesis has some interesting views as to how we, the present humanoid generation has come to be (Genesis 6). That being recorded, an unlimited God may have other humanoid-inhabited exoplanets with their own DNA-based story. Their "literature" probably has its own "existance record", but this "Revelation to John" only explains this earth's physical and spiritual existance.

and send it to the seven churches:

• Ephesus,
• Smyrna,
• Pergamum,
• Thyatira,
• Sardis,
• Philadelphia, and
• Laodicea.”