The Dead Church
The Dead Church. It is sad to see that many churches these days could fit under this category. Many claim to be faithful to Jesus, others claim that the church wouldn't exist if God was not a part of it. Others claim the Holy Spirit is moving (Evidence is usually the cause of an emotional response to worship music). The list could go on.
Sardis is this church. They have become too engulfed with the world, that though they are established and still stand, they are spiritually dead. While there may be a remnant of true believers, the core of the church is that the Spirit of the Lord does not dwell within this church.