The Last trumpet IS NOT the 7th trumpet

 

How do I know The Last trumpet IS NOT the 7th trumpet?

First, Revelation 10:7 and Revelation 11:15 would not be revealed for another fifty years, so Paul and the Corinthians believer's had no knowledge of the seven trumpets of revelation. 

Second, Paul and the Corinthians would know about the meaning of the trumpet call of God and at the last trumpet in their current culture. 

Both 1 Thessalonians and 1 Corinthians were written long before John wrote Revelation, so Paul’s readers would have no knowledge of the seven trumpets of Revelation. Paul intended for them to understand what he was writing about, so we need to look elsewhere for clarification. Paul’s writing was distinctly in reference to the church and the closing of the church age at the rapture. Throughout Scripture, trumpets were used as signals to gather people, to set armies on the move, and as part of the worship of God. The trumpet that summons the church is called “the trump of God,” while those in Revelation are angelic trumpets. Since it is a summoning trumpet, we can look to the Old Testament for further understanding. Numbers 10 gives instruction to Israel about the use of trumpets to call an assembly of the people and to set them in motion. The first trumpet blast (v. 4) called the leaders together, while a continual blowing was an alarm for the people. A series of trumpet blasts was the signal for each group of tribes to begin their journey, and the last blast indicated the movement of the last group in the camp. Similarly, 1 Corinthians 15:23 speaks of different orders, or ranks, in the resurrection: “Every man in his own order: Christ the firstfruits; afterward they that are Christ’s at His coming.” Further, 1 Thessalonians 4:16–17 divides Christ’s own into two groups—the dead in Christ and those who are alive and remain.

https://www.gotquestions.org/last-trumpet.html

This last trumpet may be connected with the trumpet of God in 1 Thessalonians 4:16, but not with the trumpets of angels in Revelation 11. A distinction may be made between the trumpet of an angel and the trumpet of God. Chuck Smith points to a grammatical construction that would be different if this trumpet were the trumpet of Revelation 11.

I see great difficulty in identifying the seventh trumpet of Revelation 15 and the List trumpet of I Corinthians 15 as one and the same, because the results and the time factors are so different. In his New Testament Greek commentary on I Corinthians

15:52, Dean Henry Alford declares that no reason exists to define the last trump to be the seventh trumpet of Revelation. He also says that there's no reason to assume that there are no trumpets after the last trump of I Corinthians 15.

Henry Alford, Alfords Greek Testament (Grand Rapids: Guardian Press)

Ironside says that the last trumpet was a figure of speech that came from the Roman military, when they broke camp. The first trumpet meant, “strike the tents and prepare to leave”; the second trumpet meant, “fall into line”; the third and last trumpet meant “march away.” This last trumpet describes the Christian’s “marching orders” at the rapture of the Church.  

https://enduringword.com/bible-commentary/1-corinthians-15/

Chuck Smith 

 (T)here are those who say that the seventh trumpet is the last trumpet; thus the rapture won’t take place until after the Tribulation period. However, this trump of God is different from the trumpet of the angels. Notice the trump of God versus the seven angels, which are given the trumpet to sound.

Not only that, this happens in a moment, in the twinkling of an eye. It’s an instantaneous thing. The seventh trumpet of Revelation, the judgment trumpet, and in the days of the sounding of the seventh trumpet, it’s over a period of days.

Plus when this trumpet sound, it’s not going to be woe, it’s going to be glory! Woe, woe, woe to the inhabitants of the earth by reason of the three trumpets yet to sound. It’s going to be a judgment trumpet. But this is going to be glory, when trump of God shall sound, the last trump! And we, the dead, raised incorruptible. And we shall be changed. A metamorphosis! A change of body. Why? Because flesh and blood can’t inherit the kingdom of God, thus this corruption must put on incorruption. This body is in a corrupting state. The catabolic forces have taken their toll. And the body is gradually dying.  

https://robertcliftonrobinson.com/1-corinthians-15/