Faith, by which I mean holding an unsupported belief about what is real.
Nope. I had written, "I have told you repeatedly that your evidence doesn't support your beliefs and that your reasoning is often or usually fallacious." Everybody disagreeing with you holds that belief. They keep telling you so. And you may have seen a comment about that claim I made earlier in this thread regarding makings it about sound conclusions. It the poster is not only unable to think critically, but seems unaware that there is such a thing or what it can do for those who can do it, and therefore assumes that there is only ne way to come to opinions and that they are all subjective guesses. What else could such a statement mean?
If you told somebody that 316 + 973 = 1289, and they said that that was only your opinion, that would tell you not only that they can't add, but that they don't know that anybody can,or what addition is, or what it can do for those trained to add properly. What else could it mean?
You cannot scientifically prove that my evidence is fraudulent.
I don't care if its fraudulent. I care if it is correct.
What is the point of a discussion, if we don't care what anybody else believes but ourselves?
What one believes is of little value or interest to the critical thinker - just what he knows and can demonstrate to be correct.
Quite right .. but would it be based on reason .. or merely your own opinion?
Reason.
It is an informed opinion, based on the Bible and Qur'an .. not to mention my intuitive thoughts that mankind are accountable for their deeds in some way.
If you believe it based in just that, it is a guess. You are guessing. I'm starting to get the idea that for many posters, they are unaware that there is any other path to belief.
No, they are not "irrational" reasons, just because you say so.
They are irrational beliefs because they are not sound conclusions, meaning reason properly interpreted according to the rules of critical thinking.
The core belief that God exists is "untestable", from a material point of view.
Then belief in that is not derived from evidence. Evidence is always physical - better word than material. The physical world contains more than matter. The sun is matter, but the evidence of it to the unaided senses is energetic - light and heat. The solar wind and coronal mass ejections includes matter - subatomic particles - but that is not evident without special detectors.
one cannot apply "critical thinking" to the existence or non-existence of a Creator.
One can critically evaluate any declarative sentence. You've seen it done repeatedly in this thread. The claim is purely metaphysical, and as such is not falsifiable, scientific. It is "not even wrong."
I take the existence of God "on Faith"
Yes, I know, but faith is not a path to truth. Without faith, one can't hold that belief. That's what it means to say that the belief is irrational, unjustified, or insufficiently evidenced.
what you are claiming is that atheists employ reason, whilst believers do not, in ascertaining whether God exists?
Yes, if they are agnostic atheists.
I don't find that religious knowledge is "useless"
What can it be used for other than comfort?
If God does not exist, that implies that it is all a gigantic cosmic accident of some kind.
And if God does exist, that is also a big cosmic accident according to your usage of the phrase. There is no reason we know of why that needs to be the case, that is, why the existence of a god isn't contingent. Imagine being god and thinking how lucky you are to be possible much less actual. That's how I feel about reality - all of it, including gods if they exist.