Gottesbeweis
»I could add to this indication a thing I have seen the last two Sundays here in Chicago, visiting a service in a church in which Negroes and Whites sat peacefully together, worshiped, heard the Word of God, sang, and prayed together. White men and black men! — a fact, an external structure of the cosmos — and in this case, we may say a remarkable proof of the existence of God«
Karl Barth, Podiumsdiskussion in Chicago (1962), in: Gespräche 1959-1962 (GA IV.25), 463