Revelation 11:15–19 ends the parenthesis between the sixth and seventh trumpets. Christ is ready to take possession of the kingdoms of the world. This expectation causes the twenty-four elders to lie prostate and give thanks to the eternal Lord. Soon He will judge the dead and reward His servants. The elders’ praise is reminiscent of their praise in Revelation 5:8–10. The imminent judgment is executed in Revelation 20:10–15, and the rewarding of the Lord’s faithful servants is described in 1 Corinthians 3:10–15 and 2 Corinthians 5:10. The apostle Paul associated the giving of rewards with Jesus’ prophesied appearing.
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“Revelation 11:15” Bibleref.com
What does Revelation 11:15 mean? | BibleRef.com
15 The seventh angel sounded, and great voices in heaven followed, saying, “The kingdom of the world has become the Kingdom of our Lord, and of his Christ. He will reign forever and ever!”