We have looked at different marketing strategies for churches and whether churches should try to be culturally relevant, but there is considerable support for the view that churches should preach the word and let God do the rest.
Curious Christian wrote a comment on this blog encouraging the preaching of the gospel and there is an article by John McArthur with more detail, which examines Paul’s preaching and the challenges he faced:
From Athens to Los Angeles, first century to twenty-first century and everywhere in between, repentance may not be popular, but it’s still the gospel. Teach this post-Christian culture about God and then command repentance. That’s the only message we have; without it, no one would be saved.