Tim Keller offers a helpful challenge for churches to engage the city with gospel proclamation and gospel living. He says for example, "Cities are strategic and have lots of people yet they are poorly served by the church." This is not to discount the need for rural-based churches or suburban-based churches but we must continue to engage the city. It is just under 20 minutes and well worth it.
Tim Keller Argues For Churches In Cities [Lausanne] from Kenny Jahng on Vimeo.