I have been a pretrib rapture believer and defender for many years. I can support it from every angle out of the old or new testament, and I have a great understanding of the problems with placing the rapture anywhere but pretrib. I have read many times where you say not to let one verse undo what many verses have already established. Having said all of that I am wondering if you could help clarify Revelation 10:7 where talking of the mystery of God being accomplished by the seventh angel, at the seventh trumpet, and whether or not it is referring to the rapture of the church at the last trumpet.
The only way a person can see the rapture in Rev. 10:7 is by incorrectly interpreting the seventh trumpet in this verse as being the last trump Paul spoke of in 1 Cor. 15:52. The Bible does not give us any reason to do this. Consider that Paul said we would be rescued from the time of wrath in Romans 5:9 and 1 Thes. 1:10, that Jesus said we would be kept from the hour of trial that’s coming upon the whole world in Rev. 3:10, and John said the time of God’s wrath will have begun during the seal judgments (Rev. 6:16-17) and you can see that the last trump and the 7th trumpet cannot be the same.
The word mystery means a secret. In 1 Cor. 15:51 it refers to the rapture of the Church which Paul, and only Paul, revealed for the first time on Earth here and in 1 Thes. 4:16-17. Personally, I believe the mystery of God in Rev. 10:7 is explained in Rev. 11:15 to be the establishment of the Kingdom of God on Earth. This is the mystery that God announced to His servants the prophets throughout the Old and New Testaments.
And notice in Rev. 10:7 it’s the seventh angel sounding His trumpet. In 1 Thes. 4:16-17 Paul said the rapture will be accompanied by the trumpet call of God.
In short, even the circumstantial evidence is insufficient to justify equating the seventh trumpet of Rev. 10:7 with the last trump of 1 Cor. 15:52.