The believer seems to know god better than he knows himself

[Angrboda]

They all seem to know better than each other too, hence all the tens of thousands of schisms.

"Christians, it is needless to say, utterly detest each other. They slander each other constantly with the vilest forms of abuse and cannot come to any sort of agreement in their teachings. Each sect brands its own, fills the head of its own with deceitful nonsense, and makes perfect little pigs of those it wins over to its side." -- Celsus (2nd century C.E.)