John Piper talks about the prosperity “Gospel” here:

America’s Ugly Exported “Gospel” :: Desiring God

The prosperity gospel is also known as “Word of faith,” “Name it and claim it,” “Health and Wealth,” etc. Christ did not come to make us rich on earth. He came to show us the way to riches in heaven.

If you can watch this video without becoming emotional, you’re a stronger person than I am.