Take a moment and try to conjure up a TV Christian in your mind. Is it a member of the Camden Family? Ned Flanders? Kenneth “Science is my most favorite subject, especially the Old Testament” Parcell? Whoever it is, I’m willing to bet their confidence in Christianity is near absolute -- usually played to comic, if cringeworthy, results. These characters, coupled with the poised Midwestern Christians I grew up with, tricked me into believing that…