Don't misunderstand Jesus' comment about Lazarus' sickness. He was not saying, "Lazarus' sickness isn't unto death; nevertheless, he's suffering with this sickness to bring God glory."
If we're not careful, we can get confused because we don't study the Word enough to rightly divide it. Jesus wasn't talking about the problem; He was talking about the end result. Jesus always talked about the end result.
He was saying here, "The end result of this sickness will not be death but the glory of God."
Again in John 11:40, Jesus told Martha, "I told you if you'd believe, you'd see the glory of God." The sickness took Lazarus' life for awhile, but his life was given back to him when Jesus raised him from the dead. Thus, Lazarus' sickness wasn't for God's glory; it was his resurrection from the dead that brought God glory. That was the end result.
God is glorified when I am healed and walking in health. The end result of my life will be to God's glory. I walk in health and run my race, and I will finish my course with joy!
Excerpt permission granted by Harrison House Publishers