Sigh..... i appreciate the passion but a moments pause will reveal the real truth:
'a believer' is here because he is hooked on the real truth. He (or she) shows up and reads whats the the truth about the truth and iHe (or She) has already been touched by it.
There is no need to be rough with him or her and no need to be offended by his or her attempts to defend. Its nothing more than the initial phase of waking up and sorting through the pain of having suckered into the cult.