Prosperity and Adversity, who is the author???

Here is an interesting scripture:

In the day of prosperity be happy, but in the day of adversity consider-- God has made the one as well as the other so that man may not discover anything {that will be} after him. Ecclesiastes 7:14 (NAS)

I'm stuck on the first part, that God has made both prosperity AND adversity. So there, Word of Faith people! There is so much nonsense being spread around the Body of Christ that we DESERVE prosperity BECAUSE we are God's people. What a selfish, arrogant and ignorant worldview. By definition it says that if one isn't living prosperously they they can't be one of God's people. Ridiculous.

We must, must, must move away from this entitlement mentality and see the world for what it is: a junk yard, with all-too-brief times of glorious adventures.