Times of Destruction: A Christian End Times Thriller (Book 5). The End Times Saga: Christian End Times Series, #5

The fifth novel in the Christian fiction series, The End Times SagaAfter the rapture occurs, Michael Evans introduces the man who becomes the world leader. The new leader, calling himself the Patriarch and renaming the United Nations to the Union of United Earth, consolidates his power and moves the new world capital to the city of Babylon in Iraq. The Patriarch divides the world into ten administrative regions and has ten men administer those regions for him.
Next, he appoints a world-renowned prosperity gospel preacher as the new High Priest for the global religion. During the first three and a half years, the Patriarch reorganizes the world economy, the High Priest creates a loyalty mark for people to take to show their loyalty to the Union, and then disasters begin occurring as predicted in the Bible. The first trumpet announces hail and fire mixed with blood, which kills 1/3 of plant life.
The second announces a great mountain, an asteroid, burning with fire from space that's hurled into the sea and kills 1/3 of ocean life. The third is a comet that turns 1/3 of the waters bitter. The fourth extinguishes 1/3 of the light from the sun, moon, and the stars. The fifth, those that aren't sealed by God are harmed by demon possessed "locusts." The sixth, world war three occurs. The seventh, will be in the next novel, the next three and a half years.
As they deal with this, they have to put up with two witnesses who show up in Jerusalem, preaching the Gospel, and warning of the beast and his false prophet. As the Patriarch deals with the disasters, the witnesses, and the Jews in Israel, the world moves closer to the middle of the Tribulation, where the Patriarch's life will change and the judgments begin to ramp up.