A poem by William Stidger says it well:
"I saw God bare his soul one day
Where all the earth might see
The stark and naked heart of him
On lonely Calvary.
There was a crimson sky of blood
And overhead a storm;
When lightning slit the clouds
and light engulfed his form.
Beyond the storm a rainbow lent
A light to every clod,
For on that cross mine eyes beheld
The naked soul of God. "