The throwing down of the censer (or fire) in Rev. 8:5 suggests to some Adventist interpreters that the events that follow (8:6—the blowing of the seven trumpets) are after the close of probation. This would mean that the seven trumpets represent end-time events rather than a forecast of events throughout the course of Christian history. But a number of indications in the text make this very unlikely.
First, the pattern in the first half of the book of Revelation (the churches, the seals and the trumpets) is that the visions begin with the New Testament era and cover events throughout Christian history. Second, whatever the casting down of the censer (fire) in Rev. 8:5 means, probation is clearly not yet closed at the time of the sixth trumpet. The intercession at the altar is still taking place (Rev. 9:13) and the gospel is still going forth (10:11; 11:3-6, 12-13). That the “interlude” of Revelation 10:1 – 11:13 should be included in our understanding of the sixth trumpet is shown in a following blog. Chapter ten and eleven are part of the sixth trumpet, not an independent vision. Finally, the proclamation of the gospel ends and probation fully closes only at the sounding of the seventh trumpet (Rev 10:7). So the seven trumpets of Revelation cover the whole course of history from John’s day to the close of probation and final events.
Major parts of Revelation DO concern end-time events in human history. But when John goes there, he makes it fairly clear that he is doing so. While each of the seven-fold series (churches, seals and trumpets) ends in the final era, the central focus of the second half of the book is almost entirely focused on the last events of earth’s history.