“The Kingdom of God breeds prophets; the Church breeds priests and theologians. The Church runs to tradition and dogma; the Kingdom of God rejoices in forecasts and boundless horizons. The men who have contributed the most fruitful impulses to Christian thought have been men of prophetic vision, and their theology has proved most effective for future times where it has been most concerned with past history, with present social problems, and with the future of human society. The Kingdom of God is to theology what outdoor colour and light are to art. It is impossible to estimate what inspirational impulses have been lost to theology and to the Church, because it did not develop the doctrine of the Kingdom of God and see the world and its redemption from that point of view.”
Walter Rauschenbusch, A Theology for the Social Gospel, 1917.