But in the days of the voice of the seventh angel, when he begins to sound, THE MYSTERY OF GOD SHOULD BE FINISHED, as He hath declared to his servants the prophets.
A mystery is that which is unknown. God's reality was unknown for thousands of years and was to remain so until the Seventh Angel sounded in the Last Days. the masses who worshipped God prior to the sounding of the Seventh Angel would be worshipping other than His true reality; that would be unknown to them.
In 1931 the Seventh Angel sounded and the mystery was finished. God came out of "hiding" and as expected the world stood in offended shock and consternation by the revelation. Over seventy years have now passed and emotions have subsided. It is now time to look at this teaching in a scholarly scienfitic and theological manner.
For the sake of arguement,you're right and what is stated here is historically accurate. Assuming that, the verses this refers to is the end of a series of chronological events. What are the historical correlations for the first six trumpets as stated in Revelation 8 & 9?
8-7-The first angel sounded and there followed hail and fire mingled with blood, and they were cast upon the earth, and the third part of trees was burnt up, and all green grass was burnt up
8-8&9 --And the second angel sounded and as it were a great mountain burning with fire was cast into the sea and the third part of the sea became blood. And the third part of the creatures which where in the sea and had life, died; and the third part of the ships were destroyed
8-10:11 And the third angel sounded and there fell a great star from heaven, burning as it were a lamp, and it fell upon the third part of the rivers, and upon the fountains of waters: And the name of the star is called Wormwood; and the third part of the waters became wormwood and many men died of the waters, because they were made bitter
8-12:13 And the fourth angel sounded, and the third part of the sun was smitten, and the third part of the moon, and the third part of the stars, so as the third part of them was darkened, and the dya shone not for a third part of it and the night likewise. And I beheld and heard an angel flying through the midst of heaven saying with a loud voice, Woe,woe, woe to the inhabiters of the earth by reason of the other voices of the trumpet which are yet to sound
Let's just stick with the first four for now, the last two get really wild