The call to faith is a summons to engage the heart, to attune it to resonate in sympathy with principles and values and ideals that we devoutly hope are true and which we have reasonable but not certain grounds for believing to be true.  There must be grounds for doubt as well as beleif, in order to render the choice more truly a choice, and therefore the more deliberate, and laden with personal vulnerability and investment.  And overwhelming preponderance of evidence on either side would make our choice as meaningless as would a loaded gun pointed at our heads.  The option to believe must appear on one's personal horizon like the fruit of paradise, perched precariously between sets of demands held in dynamic tension....We are acted upon, in other words, by appeals to our personal values, our yearnings our fears, our appetites, and our egos. What we choose to embrace, to be responsive to, is the purest reflection of who we are and what we love. That is why faith, the choice to believe, is, in the final analysis, an action that is positively laden with moral significance.

Terryl & Fiona Givens, The God Who Weeps, pg. 4