Being an usher is actually a very important position. If you serve as an usher you are likely the first person a visitor sees. And that visitor forms an opinion about the church you represent. As an usher you may hand out greeting cards or take up the offering.
In other words you represent the church!
The Imminent Return of Christ is not, to my knowledge, ever identified as a belief by name. However, if you read the letters of Paul and the other Apostles it is clear they looked to His return in their own lifetime.
From the very beginning when the Pilgrims came to America the church played a role. Most, if not all, had been persecuted for their faith. They saw America as their last chance to be able to worship God as they believed the Bible taught.
When writing about the persecuted church it might be wise to take a step back and consider what church I am talking about. In this day and age the word church has become a huge umbrella that includes “Christians” that don’t really belong under that label.