Sayers on God's Way

From Dorothy Sayers' The Devil to Pay:

Hard it is, very hard,
To travel up the slow and stony road
To Calvary, to redeem mankind; far better
To make but one resplendent miracle,
Lean through the cloud, lift the right hand of power
And with a sudden lightning smite the world perfect.
Yet this was not God's way, Who had the power,
But set it by, choosing the cross, the thorn,
The sorrowful wounds. Something there is, perhaps,
That power destroys in passing, something supreme,
To whose great value in the eyes of God
That cross, that thorn, and those five wounds bear witness.