As [Jesus] passed by, he saw a man blind from birth. And his disciples asked him, “Rabbi, who sinned, this man or his parents, that he was born blind?” John 9:1-2
Suffering produces an insatiable desire to blame. Surely there must be some reason why this poor man must suffer all his life without sight. We hunger and thirst for some impetus for it all.
Why are we so bent on finding fault? Partly because we hope to prevent future suffering by finding the cause. Just like you may avoid spicy food if it once gave you heartburn. Partly because if the sufferer is to blame, we can accept the hardship as a legitimate recompense to sin: “She deserved that,” or “I had it coming.” If someone else is to blame, we at least have someone to take our anger out on.
So how does Jesus answer the disciples inquiry about the cause of the blind man’s life of suffering?
Jesus doesn’t tell us of a world of needless suffering. There is a reason, but it is one that we have had no category for at all: suffering for the sake of the glory of God.