>>1180
The events of the Great Tribulation start with a great falling away, not a revival. One could argue that's already happened. The once formerly Christian West, is now almost completely heathen again. The first three books of Revelation tell us how Jesus is going to get the party started. And he does it, not by slapping around satanists and degenerates. He starts it off, by slapping the stupid out of us. His own people, to instill some discipline, at long last, to a bunch of soft, backslidden followers. That's going to cause even more to walk away if anything. So I suspect that if you're hoping for a great revival, you're going to be greatly disappointed.
But...
Those who are left, and those who join, in possibly ever increasing numbers later, will be of the finest quality. Not quantity, quality. A sifting process will go on the entire time. Eventually it won't be possible to fence sit anymore. Both quantity and quality will rise. But not before a lot of very dark days.
Don't expect too much and you won't have to be demoralized. The victory will come, but you have to realize it won't come cheap or easy. You'll have to work hard for it. That's the best advice I can give you.