In your opinion what causes christians to believe in Jesus

[Sheldon]

However, I sometimes wonder whether the real problem is that they believe they are guided by the Holy Spirit no matter what kind of nonsense they spout.

Nope, I'm guided by my degree in cognitive science. Why would I not speak with confidence?

It's not confidence, it is strident and arrogant, not that this matters of course, what's important is your spiel is at odds with the dictionary for a start, is unsupported by any evidence, you have failed to offer a single reason for your belief, or even properly define it, beyond the broad title of the sect / denomination, 


If your opinion is relevant within a scientific field of study, then you could point to a broad consensus in that field, rather than simply claiming it, then sulking when citations were offered suggesting you were wrong. Otherwise this is the same appeal to authority fallacy you used, when you claimed you had falsified the theory of evolution, and that your position as an undergraduate in psychology, made you the most qualified on that site (AR) to make the claims you were making, Just as is the case now, the evidence does not support this. 

Education alone does not make someone correct, or what they are claiming true, or even sound. Both you and @Belacqua seem to make this error. Either the facts support claims, or they do not, regardless of the educational level, or even intelligence of the person making or disputing those claims.