The following is by Peter J. Leithart:
Four times in Revelation, John is directly told not to do something.
When he falls at the feet of Jesus, Jesus touches him with his right hand and says, “Do not fear” (1:17; Gr. me phobou).
When no one in heaven, earth, or under earth can be found to open the book, John begins to lament. One of the elders tells him, “Do not weep” (5:5; Gr. me klaie).
When he sees the harlot riding on a beast, he marvels. His guiding angel wonders at his wonder: “Why marvel?” (17:7; Gr. dia ti ethaumasas), he asks, with more than a hint of rebuke (cf. 13:3).
Twice at the end of the book, he falls at the feet of an angel and is told not to worship (19:10; Gr. ora me).
It’s a neat manual of discipleship: Do not fear. Do not lament. Do not marvel at the whore. Do not worship angels, but God.
And it’s a neat little summary of what is missing in the new Jerusalem, in the city where God dispels all fears, wipes all tears, where He alone is the Marvel who is worshiped.