Here is the answer to those who are proponents of the "prosperity gospel":
Some people want to see God with their eyes as they see a cow, and to love Him as they love their cow -- for the milk and cheese and profit it brings them. This is how it is with people who love God for the sake of outward wealth or inward comfort. They do not rightly love God, when they love Him for their own advantage. Indeed, I tell you the truth, any object you have in your mind, however good, will be a barrier between you and the inmost Truth.