Christ is coming back for a spotless bride. That's the church, and the church is Holy Spirit indwelling, transforming, and perfecting every believer.
Believers don't have much time to get it right.
All we can do is be ready at all times, for He may come at any time. He will take a spotless bride away with him regardless of our actions or associations, and the guy sitting in the pew next to you may wonder where you went. Or it may be you or I who is sitting there wondering. But “the church” isn’t a building full of perfect people. It is all of the individual believers who faithfully wait, fearfully repenting and praying for salvation.