The church is the corporate body of Christ worshipping together, i.e. church is for the saved primarily.

Having said that, we Paul speaks about unbelievers entering our midst (don't get too wild or they'll think you're all drunk or crazy, Paul says, or something to that affect to the charismatic Corinthians). So there is the possibility and the openness and the hope that unbeleivers will come into the assembly of the saved and be saved too.

I think the main thing you are getting at is this: Corporate worship exists mainly for the saints, but we the saints do not exist for ourselves. The church exists for the glory of God and for others. We are not to be too inward focus but are too come to church and glory in God and return to our stations in life with a determined outward focus at reaching our providential networks of relationship.

The unfortunate thing is that people often think that their Christian life begins and ends in the church building. However, we meet with the church to be refreshed and equipped for service outside the church. We pray for God's blessings so that we may bless others, as per Psalm 67. If the church does not have a focus in blessing others she has forgotten part of her existence. There is an evangelistic or missionary nature to the church that is always to be overt, deliberate and visible.


However, Seeker-sensitive services, I believe, (at least how many are run today) change the nature of what the church exists for. The saints are forgotten and sinners are catered to. This is not the NT church that we read of in Acts.

But, this is not to say we are not to be evangelistic. We have 7 days a week to speak to our neighbors, 6 days of labor and on the Lord's Day too. And every Lord's Day the Gospel should be explained too and sinners sought, even in the midst of feeding the sheep.


Now, about church gluttony:

This is why I think that churches ought not to fill up the weekly schedule of its congregants with meetings where they just sit and listen some more. Once, maybe twice on Sunday to hear the Word, but there is nothing sacred about Wednesday nights- perhaps the week should be used for small cell groups, starting local neighborhood Bible studies, etc.

There is a dynamic that says we should bring sinners into church, but usually it seems that evangelism consists of the church going out rather than sinners coming in. Most evangelism is at least initiated outside the four walls of the church. We go out to invite people in. Therefore, it is expected that flocks of sinners do not show up every Sunday, but that they trickle in as they gain an interest in the blood, usually from the witness of church members as they labor through the week. Therefore, the church will never be "filled" with the unsaved people but with people who God is preparing to save or newly saved people, etc.

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Pergamum


"If a commission by an earthly king is considered a honor, how can a commission by a Heavenly King be considered a sacrifice?"
-- David Livingstone