I think all of life is God-breathed, pete. That doesn't mean that people get it right all the time. Yes, I think that all genuine prophets and spiritual teachers are guided by the spirit of God providing inspiration within them...but again, that doesn't mean they necessarily get it right all the time when they attemt to convey what they were inspired by...or that they have have the last word on the matter.

People choose to believe that the Bible is the perfect Word of God simply because other people have told them it is, generation after generation. This is also true of Muslims who believe the Q'ran is the perfect Word of God. What all these people are actually taking as authority is the word of certain other people, people whose judgement on the matter they have decided to trust.

And that's normal behaviour for human beings. People do the same thing in regards to all kinds of ordinary political and social stuff, quite apart from religion. What convinces them is generally the weight of tradition itself and the comfort of familiarity.

There are probably very similar things happening on other planets that we've never heard of and know nothing about.