I feel that the minute one starts analysing the tenets of Christianity and trying to prove or disprove this or that, one is getting further and further from the simple concept of faith. Basically, one either does or doesn't have faith and no amount of criticism, ranting, derision etc can shake a firm faith. Conversely, no amount of persuasion, assurance or assertion can engender faith where there is none. It's best if those who believe go on doing so quietly, and those who don't let them do it!