Q about arguments for God's existence.

[abaris]

There are numerous writings by Christians of various background that didn't make it into the Canon. One with a historical interest can't eliminate the value of such testimony as it regards early Christian belief and practice because of the author's conversion to Christianity any more than a person's allegiance to Greece or Rome, or an Epicurean or Stoic philosophy for that matter, discredits everything they say.

I don't know if you're familiar with the works of Bart Ehrman. He gives an excellent account of how the bible came to be in his book "The Story Behind Who Changed the Bible and Why".

There are numerous clips on the internet where he explains his premisses and he does a much better job in explaining it than I could ever do. Suffice to say, I agree with him on most everything he says about the validity of the old accounts and the texts that didn't make it into the canon.