Commentaries:
Within the book of Revelation, there are inset chapters. An inset chapter is one that does not follow the time sequence established by the rest of the book. It explains in more detail events that are necessary to understand more fully what is happening in time sequence, so the insets are historical digressions that give greater clarity to the revelation.
In Revelation 6:12, we find the sixth seal is opened. But the seventh seal is not opened until Revelation 8:1—a whole chapter and a half later. But between these occurrences is a description of an event that is a necessary digression so that we will understand what is happening to a group of people during some of the events that have already been prophetically described. In the case of chapter 7, the digression is very close to being within the sequence of events, but it is still a digression, still an inset chapter.
John W. Ritenbaugh
Revelation 10 and the Laodicean Church
Other Forerunner Commentary entries containing Revelation 7:2:
Revelation 7:9-17
Revelation 14:1-5