That we were thrust into this world, not of our own choosing, to make the best fist of it that we can.
That God first set some very hard parameters to our behaviour. Thou shalt not commit adultery. Then He made them impossible. Whomsoever looks on a woman with lust has already committed adultery in his heart.
And we stumbled on, weak and fallible, falling and failing, easy prey to the unholy trinity of the world, the flesh and the devil. And God sat there, the steely-eyed judge, waiting for the day of slaughter.
We were found guilty of the very crimes God pre-disposed us to commit. We were the clay, waiting to be shattered by the very potter who mismade us.
We didn't deserve it.
So God came down to earth in human form. He lived a perfect life. And then he died the perfect death; vilified, whipped, spat upon, mocked and tortured.
And with his dying breath, he did a curious thing. He said "Forgive them, Father, they know not what they do." And in so saying he exchanged his innocence for our guilt, His perfection for our depravity, His peace for our agony and His eternity for our fading, fading light.
And guess what?
We didn't deserve that, either.