Cities

Nineveh was a great city. God calls it great in the book of Jonah. Cities are places where evangelism takes place. Paul often looked at cities to do his evangelism. But why cities and not small communities?
First, cities are have power and prestige. If you can establish a church in a city then you can reach out from that city to the surrounding areas.
Cities are also a place of prosperity. People go to cities to get rich. Often they find that their wishes have not been met so they are open to the Gospel.
But cities are place were there is all sorts of sin and crime. Cities need the gospel.