Paul told young Pastor Timothy to exhort, reprove, and rebuke, with all longsuffering (patience) and doctrine (teaching).Obviously, we can't do the Holy Spirit's job for Him, but we've just as clearly been called to exhort, reprove and rebuke, and the Spirit works through us.As to your question of not letting them (people who are definitely not yet entirely sanctified) come to church, I must say the way the Holiness-Pentecostal movement has usually practiced church discipline has always been a curiosity to me. The Apostle Paul in 1 Cor. 5 did have to administer severe discipline to the church for its lax standard, and he did command they excommunicate the man who was sleeping with his father's wife, but even that was with a view to his repentance and restoration to righteous living. It seems to me that the way the early church was to deal with what I'd characterize as more normal sins in the lives of believers was to exhort, reprove and rebuke, with all patience and teaching. 'Kicking someone out of the church' seems to be reserved only for the most egregious, arrogant, unrepentant cases of persistence in gross sin, and even then, it was with a view to their repentance and restoration, not their destruction or damnation. Also, I should hasten to add that reproving, rebuking and disfellowshipping should only be for biblically defined sins, or actions that certainly can be logically considered sinful based on biblical principle, such as smoking and gambling, for example.