According to Gallup polls, the so-called American church is in decline. However, -Roger Olson, a scholar with a Ph.D. in religious studies who has studied American religious life (especially Christianity in all its expressions) for many years says that what is really happening is that new expressions of Christianity are popping up that are flying “under the radar” of critics who claim “the American churches” are losing members. People are flocking from many of the old, so-called “mainline” churches and many are attending new collective expressions of Christianity that may or may not be called “churches.” Throughout the South and Midwest thousands of “cowboy churches” are popping up. Most of them do not belong to any denomination or are only very loosely affiliated with, for example, a local Baptist association of churches. There are literally thousands of immigrant churches that are hardly noticed by the bean-counters. For example, the Redeemed Christian Church of God of Nigeria has at least seven hundred congregations in the U.S. I am told that many of these congregations are large and growing not only through immigration but also through evangelism and people leaving other churches to attend these.
Churches that are truly born again, Bible-believing churches are not in decline because they are empowered by the Holy Spirit and are doing what God has called them to do. They have a Biblical worldview and therefore know Jesus is returning to this planet in the not too distant future first to remove His Saints and then to pour out His wrath on an unrepentant lawless world and they are acting accordingly.
They also know what Jesus said about the time before His return. It will be a time of great tribulation for Christians as God deals with the rebellion both in the heavenly and earthly realms. Satan and His demons are finally cast out of heaven and Satan enters the Antichrist and increases persecution first Jews and then of the Saints.
Now war arose in heaven, Michael and his angels fighting against the dragon. And the dragon and his angels fought back, but he was defeated, and there was no longer any place for them in heaven. And the great dragon was thrown down, that ancient serpent, who is called the devil and Satan, the deceiver of the whole world—he was thrown down to the earth, and his angels were thrown down with him. And I heard a loud voice in heaven, saying, “Now the salvation and the power and the kingdom of our God and the authority of his Christ have come, for the accuser of our brothers has been thrown down, who accuses them day and night before our God.” Revelation 12:7-10
“Therefore, rejoice, O heavens and you who dwell in them! But woe to you, O earth and sea, for the devil has come down to you in great wrath because he knows that his time is short!” Revelation 12:12
“And when the dragon saw that he had been thrown down to the earth, he pursued the woman who had given birth to the male child. But the woman was given the two wings of the great eagle so that she might fly from the serpent into the wilderness, to the place where she is to be nourished for a time, and times, and half a time.” Revelation 12:13-14
“Then the dragon became furious with the woman and went off to make war on the rest of her offspring, on those who keep the commandments of God and hold to the testimony of Jesus.” Revelation 12:17