Chapters 8 and 9 of the Book of Revelation are about the seven trumpets of warning, the warning judgements of God. This seems like a very serious and solemn subject, and we may wonder what the pastoral potential of the passage is, what comfort there is in it.
Some people think all these things are to do with the last period of tribulation. There is such a thing as the tribulation, but the seven trumpets are not about things that belong to the end. In their context they are things that happen throughout the age. They do not refer to one great cataclysmic season at the end of time. The Book of Revelation is not written for just the last generation of Christians, but for all those living from the time of John onwards. It was written to give comforts to those suffering under the early Roman persecutions, and it is written for us also.