He can cancel your lease on life any time He chooses. This is the God who is revealed in the Bible. He is the One with whom you must deal every day. And in the end you must come to terms with Him. Now notice how faith comes to terms with God.
Faith has two elements.
First, it is believing that Almighty God does exist. However, this alone does not give you a new lease on life. Even the devil is convinced that there is a God. But he does not trust the Almighty. Personal trust is the second element of faith.