Because human philosophers and Christians (sorry, same thing) hate the idea of God being COMPLETELY in control of them (they'll concede a little bit of control for cosmetic purposes), they have invented a theory that they think allows God to be in control and them to be in control—all at the same time. They call it the fly in the jar theory. It's their theory about how God interacts with humanity. But what about GOD'S illustration of How He interacts with humanity, otherwise known as Potter and clay. Well, they don't like God's illustration. They decided to invent a better one for Him.