From D.A. Carson’s The Cross and Christian Ministry (pp. 84-85):
The ways of destroying the church are many and colorful. Raw factionalism will do it. Rank heresy will do it. Taking your eyes off the cross and letting other, more peripheral matters dominate the agenda will do it–admittedly more slowly than frank heresy, but just as effectively in the long haul. Building the church with superficial “conversions” and wonderful programs that rarely bring people into a deepening knowledge of the living God will do it. Entertaining people to death but never fostering the beauty of holiness or the centrality of self-crucifying love will build an assembly of religious people, but it will destroy the church of the living God. Gossip, prayerlessness, bitterness, sustained biblical illiteracy, self-promotion, materialism–all of these things, and many more, can destroy a church. And to do so is dangerous: “If anyone destroys God’s temple, God will destroy him; for God’s temple is sacred, and you are that temple’ (1 Cor. 3:17). It is a fearful thing to fall into the hands of the living God.
These kinds of truths the factionalists of Corinth ignored. And these truths are all too frequently ignored by their modern counterparts. This calls for thoughtful self-examination and quiet repentance.