Is belief in God something you can choose? How would that point at which the choice is made be arrived at? By grace we might find ourselves pitched into belief willy-nilly. That certainly happens and seems to me more likely than a cool appraisal followed by a decision. It appears as though there ought to be an answer to the question - why do you believe in God. Because he, she, it is there. Choosing to believe in God may be a sophism like choosing to believe in the evidence of your senses in your normal state of mind.