Suffering does not call into question the "big picture" of the Christian faith. It reminds us that we do not see the whole picture, and are thus unable to fit all of the pieces neatly into place.
Alister E. McGrathA failure to understand something does not mean it is irrational. It may simply mean that it lies on the far side of our limited abilities to take things in and make complete sense of them.
Alister E. McGrathAt Oxford University, the certainties of my atheist faith (and atheism is a faith) began to crumble
Alister E. McGrath