15 The seventh angel then blew [his] trumpet, and there were mighty voices in heaven, shouting, The dominion (kingdom, sovereignty, rule) of the world has now come into the possession and become the kingdom of our Lord and of His Christ (the Messiah), and He shall reign forever and ever (for the eternities of the eternities)!
We are shown that Jesus has returned and taken control of the earth here. The Truth is that He has always had control of it, He just returns to be here physically to control it, Colossians 1:16. The nations under the anti-christ and false prophet who have taken the mark of the beast have been gathered together to try and defeat Jesus. But they fail miserably because with His Word, Jesus consumes them as with fire! And as the angel proclaimed, it happens quickly!
16 Then the twenty-four elders [of the heavenly Sanhedrin], who sit on their thrones before God, prostrated themselves before Him and worshiped,
17 Exclaiming, To You we give thanks, Lord God Omnipotent, [the One] Who is and [ever] was, for assuming the high sovereignty and the great power that are Yours and for beginning to reign.
18 And the heathen (the nations) raged, but Your wrath (retribution, indignation) came, the time when the dead will be judged and Your servants the prophets and saints rewarded--and those who revere (fear) Your name, both low and high and small and great--and [the time] for destroying the corrupters of the earth.
The last trumpet has blown, and when it does immediately the two witnesses are raised up from the dead along with all who have died and all who are alive in Christ. We may not know the exact moment of Jesus’ return now, but when we see the two witnesses killed, the earth only has 3 1/2 days left.
After the last trumpet, the seventh trumpet, blows our Father rewards His children. If there had been a time of reward for us before this time, a pre-tribulation rapture, when some teach is the time of the Marriage Supper of Lamb, then this verse would be absolutely false. This is the time of the Marriage Supper, after the last Trumpet, 1 Corinthians 15:51-52. This is the time of our reward, not before. Think of it, why would people be rewarded when the race had not yet been finished? The final woe came and passed quickly, and now the Bride is joined with the Groom and we rule and reign with Jesus for all of eternity.
19 Then the sanctuary of God in heaven was thrown open, and the ark of His covenant was seen standing inside in His sanctuary; and there were flashes of lightning, loud rumblings (blasts, mutterings), peals of thunder, an earthquake, and a terrific hailstorm. [I Kings 8:1-6.]
These events are showing us the end of times. The Truth of our Father is seen and experienced by all. Remember that as the lost saw all of this happening, they glorified God. The lost do not glorify our Father before the end of times. This is when every knee has bowed and every tongue confesses that Jesus is Lord. The saved and the unsaved, both at one time, proclaim the Truth that Jesus is Lord!