[QUOTE=JThunder]
The statement “God doesn’t exist” is every bit as much a definite claim as “God does exist.” If someone’s going to claim that either statement is definitely true, then it’s only fair to ask them to substantiate that claim.’
[/QUOTE]
You apparently do not understand the real meaning of “He who asserts must prove”. You cannot ask people to prove a negative.
“Leprechauns exist in Ireland”
“Leprechauns do not exist in Ireland.”
How do you substantiate the first claim, which is a positive statement? You bring in a skeleton of a tiny human a few inches high. You capture one alive. You convince the Little People to come out in large numbers and to speak to biologists and scientists, to go on Oprah, whatever. Just don’t let Rosie sit on them. 
How do you prove the non-existence of something? Now, in some very limited senses, it IS possible to prove that something does not exist in a limited physical area. I CAN prove that there is no elephant in my coffee cup, for example, with eyewitness testimony, with comparisons of the volume of my cup and the size of even the smallest elephant, etc. etc.
But to prove the statement “Leprechauns do not exist in Ireland” I would need to be able to see the whole of Ireland at once, under every bush and around every tree, in every cave and even underground, since one could argue that the Little Folk exist underground. Plainly, this is impossible.
This is why, until such time as someone poves that God exists, atheism is the logical default position. And until someone proves that Leprechauns exist, aleprechaunism is the logical default position.
I cannot prove that God does not exist for the same reason I cannot prove that Leprechauns do not exist.
But it is not as black and white as all that, because even when we cannot prove that something does NOT exist, we can question the assertion that it does exist using logic and our exprience of relaity.
For example, when somone asserts that Leprechauns do exist, but presents no evidence for this belief, I am perfectly justified in pointing out some illogical aspects of that assertion. I am perfactly justified in asking:
- Why has nobody ever captured one or found the skeleton of one?
- How could they be as clever as you claim and capable of speech when their brain must be no bigger than a mouse’s?
- If Leprechauns are just like human beings only much, much smaller, there are hundreds of physiological reasons they could not exist in the same shape and configuration as humans.
[QUOTE=JThunder]
Moreover, as has been pointed out several times in the course of this thread, that’s not the topic under discussion. The OP claimed (incorrectly, IMO) that disagreement among theists on secondary matters (e.g. choice of scripture) somehow invalidates theism. The question of WHY someone should believe in God is an interesting one, but irrelevant as far as this issue is concerned.
’
[/QUOTE]
SECONDARY matters? Disagreement on SECONDARY matters?
God tells us that 2000 years ago one of his three persons became human and became his only-begotten son who accepted to be tortured to death so all humanity could be reconciled with God and saved from damnation. While on Earth this Jesus stated that “no man” came to the Father except through him.
About 600 year later, the same God tells Mohammed that no, Jesus is NOT his son but just a nice guy and a prophet, that Jesus did not die on the cross to redeem humanity, that he is a unitary God and not a triune one, and that the book that God is dictating to Mohammed is the true and final revelation that all must follow if they wish to achieve Salvation.
SECONDARY matters?