All the great groups that stood about the Cross represent in one way or another the great historical truth of the time; that the world could not save itself. Man could do no more. Rome and Jerusalem and Athens and everything else were going down like a sea turned into a slow cataract. Externally indeed the ancient world was still at its strongest; it is always at that moment that the inmost weakness begins. But in order to understand that weakness we must repeat what has been said more than once; that it was not the weakness of a thing originally weak. It was emphatically the strength of the world that was turned to weakness and the wisdom of the world that was turned to folly.
In this story of Good Friday it is the best things in the world that are at their worst. That is what really shows us the world at its worst. It was, for instance, the priests of a true monotheism and the soldiers of an international civilisation. Rome, the legend, founded upon fallen Troy and triumphant over fallen Carthage, had stood for a heroism which was the nearest that any pagan ever came to chivalry. Rome had defended the household gods and the human decencies against the ogres of Africa and the hermaphrodite monstrosities of Greece. But in the lightning flash of this incident, we see great Rome, the imperial republic, going downward under her Lucretian doom. Scepticism has eaten away even the confident sanity of the conquerors of the world. He who is enthroned to say what is justice can only ask: ‘What is truth?’ So in that drama which decided the whole fate of antiquity, one of the central figures is fixed in what seems the reverse of his true role. Rome was almost another name for responsibility. Yet he stands for ever as a sort of rocking statue of the irresponsible. Man could do no more. Even the practical had become the impracticable. Standing between the pillars of his own judgement-seat, a Roman had washed his hands of the world.
Since that day it has never been quite enough to say that God is his heaven and all is right with the world; since the rumour that God had left his heavens to set it right.
–G.K. Chesterton The collected works of G.K. Chesterton (1987) pp.188-90; courtesy of Wikiquote.