Philip Yancey said this quote

To some, the image of a pale body glimmering on a dark night whispers of defeat. What good is a God who does not control his Son's suffering? But another sound can be heard: the shout of a God crying out to human beings, I LOVE YOU. Love was compressed for all history in that lonely figure on the cross, who said that he could call down angels at any moment on a rescue mission, but chose not to - because of us. At Calvary, God accepted his own unbreakable terms of justice.Any discussion of how pain and suffering fit into God's scheme ultimately leads back to the cross.