Wretched: Preaching to Goats.

This is soooo good! There is a trend in many church's to cater the service around the non believers that may wander in to the service. The purpose of church is to equip and edify the believers, NOT non believers. That being said I would not advocate not allowing non believers to come if they are truly seeking however we should never cater our service and preaching to the non-believer. John Macarthur does a great job in explaining this