The Kellers stick to a few rules. They never talk about politics. Tim always preaches with a non-Christian audience in mind, not merely avoiding offense, but exploring the text to find its good news for unbelievers as well as believers. The church emphasizes excellence in music and art, to the point of paying their musicians well (though not union scale). And it calls people to love and bless the city. It isn’t an appeal based on guilt toward a poor, lost community.
Keller’s reading of Scripture fueled his enthusiasm. Conn had taught him a positive biblical view of cities. As he studied New York, he began to draw out that understanding. Surely God’s command to exiled Israelites applied to Christians in New York: “seek the peace and prosperity of the city to which I have carried you” (Jer. 29:7). Long before that, God had designated cities as places of refuge when Israel entered the Promised Land. They remain so today, Keller noted — which explains why poor people, immigrants, and vulnerable minorities such as homosexuals cluster in cities. They attract people who are open to change. Paul did most of his missionary work in cities, and early Christianity flourished within them. Revelation portrays the final descent of the kingdom of God to earth as a city, although a garden city, with fruit trees and a life-giving river at its center. Keller suggests that, had Adam and Eve lived sinlessly and obeyed God’s directions, they would have made Eden into just such a city.
Keller, however, isn’t blind to the ugliness that often blights urban life. Keller says the city has a “powerful magnifying glass effect” — emphasizing the best and the worst aspects of human nature.