Theology vs. Religion ... FIGHT!

I recently picked up a copy of What is Reformed Theology? by R. C. Sproul. I've not yet made it through the introduction and an apt question has been raised. What is the difference between theology and religion? As applies to what you are reading, why does the top of the page read "Dry Theology" and not "Dry Religion"? Which should consume us? Either? Both?

First, let's define our terms, then we'll contrast them.

Theology is the study of God. Literally, it means "science of God".

Religion is the study of what man does in light of God.

At the outset, we see that theology is focused on God... or at least it has its base in God. I've heard of theology used in different contexts which on face value lose sight of this (i.e. "a study on the theology of sex"). Indeed, in common usage, theology often has little to do with God. It has drifted toward the meaning of religion. Religion is a study of men. It is focused on man... it concerns itself with rites and practices... and to some degree, beliefs. The study of religion is a study mainly of what we can see, sense, and/or measure.

I assert that Theology is primary and Religion is secondary. It is knowledge of the true God that leads one to worship Him. The visible worship of a false god compared to the worship of the living God could be difficult to differentiate for human eyes. In the same way, secretarial work for the government of Canada might look incredibly similar to a secretary's job for the 1940 Nazi Germany. Thus, it is imperative that we get to know the God we serve. Right theology will lead to right religion. A religion is right to the extent that the god it serves is the one and only God of the universe. Theology is the center because God is the center. Theology is supreme because God is supreme. As God is above man, so we should consider theology above religion.