From his commentary on 2nd Kings 13:14-19–

Let me tell you something; people of great faith get sick. People of tremendous faith die. And it is folly to believe that sickness or death results from a lack of faith or commitment to God. Sickness and death happen to everybody. But there are always those who are trying to sell snake oil. From the days of the early prairie. The cure-all. From bunions to earaches. And there always seems to be someone offering the spiritual snake oil or the panacea or the cure-all to all of the problems that a Christian faces. And these panaceas are offered to people and they go through various stages…people are offering these cure-alls. Enough faith, you never need to be sick. Enough faith, you’ll always be prosperous. And the spiritual cure-alls that are offered. And they go for a while, but soon there are people who try it and it doesn’t work and then all of a sudden as they share their failure, they find that other people have experienced the same failures. They’ve been praising the Lord for a long time, nothing’s happening to their situation and they’ve been believing; nothing’s happened. Who really can understand the ways of God?

I will frankly confess I don’t understand the ways of God. Now don’t let that surprise you. If I stood up here and told you I understood the ways of God, then I would be a first-class liar. Any man tells you, “Well, I understand the ways of God,” he doesn’t know what he’s talking about. And he is contradicting God because God said, “My ways are not your ways, my thoughts are not your thoughts” (Isaiah 55:8,9). For “my ways are beyond your finding out” (Romans 11:33).

And I frankly confess I do not know the mysteries of God. I do not know why God allows certain beautiful Christians to be sick. I do not know why God allows many beautiful Christians to suffer. I do not know why many beautiful Christians are in prison in Siberia and in China and been tortured for their faith. I do not know why James was beheaded and Peter was crucified upside down. And Paul was beheaded and the early disciples all suffered martyrdom, because they believed God just as much as any of these pseudo prophets today. And if God wanted us to all be wealthy and prosperous and all, then He would have declared it plainly in the Scripture, and there would be a consistency to it within the Christian body.

It’s a tragedy the way that these doctrines have proliferated through the country. People so anxious to believe. Let me tell you something, these doctrines haven’t really had an effect upon the Siberian Christians yet. If you went up there and said, “Hey, you know, God wants you all to be prosperous and wealthy. You all ought to be driving Cadillacs up here.” And yet, because of the hardships, they have been forced to a much deeper commitment than we even dream about. Their commitment to Christ caused them the slavery that they experience in Siberia. And there are thousands of Christians enslaved in Siberia today because they dare to proclaim their faith and commitment to Jesus Christ.

I wonder just how strong the commitment would be if God began to take away some of the Cadillacs…too many people who went out on the basis on this and began to charge their Cadillacs and their caviar and all, and when the bills came due, they didn’t have enough faith to pay them.