A recent survey revealed that 96 percent of Americans believe in God. We can explain this finding only when we grant that believing in God is rather easy. The concept of God can remain just that - a concept. This view of God is a "sacred blur."
We can refer to God and still sound theological, without severely compromising our worldliness or sophistication. Such a comfortably vague concept of God does not require much from us. We not only have little sense of what this God is like, but also few clues about what this God might expect of us.
Martin Copenhaver, To Begin at the Beginning: An Introduction to the Christian Faith.