The city is not just a collection of ramparts with houses, but also a spiritual power. ... It is capable of directing and changing a man's spiritual … - Jacques Ellul

Revelation … unavoidably challenges the institution and established power, no matter what form this may take. But the adulteration by political power has changed all this. Christianity has become a religion of conformity, of integration into the social body. It has come to be regarded as useful for social cohesion (the exact opposite of what it is in its source and truth). Alternatively, it has become a flight from political or concrete reality, a flight into the spiritual world, into the cultivation of the inner life, into mysticism, and hence an evasion of the present world.

Propaganda ceases where simple dialogue begins.

After his victory at the Milvian Bridge, faithful to his promise, Constantine favors the church from which he has received support. Catholic Christianity becomes the state religion and an exchange takes place: the church is invested with political power, and it invests the emperor with religious power. We have here the same perversion, for how can Jesus manifest himself in the power of domination and constraint? We have to say here very forcefully that we see here the perversion of revelation by participation in politics, by the seeking of power. The church lets itself be seduced, invaded, dominated by the ease with which it can now spread the gospel by force (another force than that of God) and use its influence to make the state, too, Christian. It is great acquiescence to the temptation Jesus himself resisted, for when Satan offers to give him all the kingdoms of the earth, Jesus refuses, but the church accepts.