2 Jesus' disciples asked him, "Rabbi, who sinned? Was this man born blind because he sinned? Or did his parents sin?" 3 "It isn't because this man sinned," said Jesus. "It isn't because his parents sinned. This happened so that God's work could be shown in his life." (NIRV)
A common belief in Jewish culture was that calamity or suffering was the result of some great sin. But Christ used this man's suffering to teach about faith and to glorify God. We live in a fallen world where good behavior is not always rewarded and bad behavior not always punished. Therefore, innocent people sometimes suffer. If God took suffering away whenever we asked, we would follow him for comfort and convenience, not out of love and devotion. Regardless of the reasons for our suffering, Jesus has the power to help us deal with it. When you suffer from a disease, tragedy, or disability, try not to ask, "Why did this happen to me?" or "What did I do wrong?" Instead, ask God to give you strength for the trial and a clearer perspective on what is happening. (Life Application Study Bible).