The irony is that, the very vehicle of healing for repentant sinners is the very instrument of stumbling too. That is right, as much as the church provides the blessings of having a family, a place you can belong and be treated as part of a larger whole, it too is a place where injuries are inflicted. Sometimes, there is so much fun in church fellowship and you get a drop of heaven, but wait till a crisis happens, it can be hell too. Take the story below as a case study. We can cite a lot more.
Think of the hospital. We bring our sick there to get cured. Sometimes, the cure does not happen, instead the situation gets even worst. Like, the time I heard a surgeon left a scissor in one of his patients after the operation. He was doing a procedure to fix something but instead, he left a new problem. For months it was tucked in the patient's abdomen, left accidentally by the surgeon, it was only revealed by x-ray the bizarre truth, the patient was carrying a foreign object. The real problem was fixed but a new and different one needs fixing too.
So what do you do when bad things happen to you, in church. Well, what should the patient do in that story? Where does he go but to a hospital again, no matter what. Perhaps he might go to a different hospital and get fixed by a different surgeon, but no one denies, he has to go back to 'a hospital'. Going to the fire station won't fix his problem.
Church, even though it does not purposely try to disappoint us, will disappoint us. That is the nature of being a sinner and saint in a grand scale. It happens, because it ain't The Messiah.
See: The Gospel for Those Broken by the Church, by R. Rosenbladt