Revelation 11:15

And the seventh angel sounded — This trumpet contains the most important and joyful events, and renders all the former trumpets matter of joy to all the inhabitants of heaven. The allusion therefore in this and all the trumpets is to those used in festal solemnities. All these seven trumpets were heard in heaven: perhaps the seventh shall once be heard on earth also, 1 Thessalonians 4:16. And there were great voices — From the several citizens of heaven. At the opening of the seventh seal "there was silence in heaven;" at the sounding of the seventh trumpet, great voices. This alone is sufficient to show that the seven seals and seven trumpets do not run parallel to each other. As soon as the seventh angel sounds, the kingdom falls to God and his Christ. This immediately appears in heaven, and is there celebrated with joyful praise. But on earth several dreadful occurrences are to appear first. This trumpet comprises all that follows from these voices to Revelation 22:5. The kingdom of the world — That is, the royal government over the whole world, and all its kingdoms, Zechariah 14:9. Is become the kingdom of the Lord — This province has been in the enemy's hands: it now returns to its rightful Master. In the Old Testament, from Moses to Samuel, God himself was the King of his own people. And the same will be in the New Testament: he will himself reign over the Israel of God. And of his Christ — This appellation is now first given him, since the introduction of the book, on the mention of the kingdom devolving upon him, under the seventh trumpet. Prophets and priests were anointed, but more especially kings: whence that term, the anointed, is applied only to a king. Accordingly, whenever the Messiah is mentioned in scripture, his kingdom is implied. Is become — In reality, all things (and so the kingdom of the world) are God's in all ages: yet Satan and the present world, with its kings and lords, are risen against the Lord and against his Anointed. God now puts an end to this monstrous rebellion, and maintains his right to all things. And this appears in an entirely new manner, as soon as the seventh angel sounds.