The resurrection is also an unsubstantiated claim.
One can make an historical argument in favour of the resurrection. It requires a lot of groundwork (about 1800 pages of N.T. Wright's COQG series) and may not be sufficient to overcome many people's assumption of naturalism, but such a case can be made. However, that wasn't my point. My point was "God exists" is not the starting point claim of Christianity - the fundamental claim of Christianity is "Christ is risen".
If you disagree then please provide some evidence that is free from error, fallacy or misapprehension and that confirms that the resurrection took place.
I've previously outlined in other threads in GA some of the relevant themes, but a serious examination of the case is really outside the scope of what can be done in a thread like this.
Did not your timeless, unknowable deity exist before the supposed resurrection of Jesus? Is not your God supposed to exist right now? Please substantiate the claim that your God exists or acknowledge that it is unsubstantiated.
The resurrection can be supported by historical argument, but that was never the answer to your question. Your question was "Why should I give Christianity serious consideration if...." and my answer is "the reason people give worldviews serious consideration has nothing to do with whether the foundational assumptions can be proven or not, so whether I can prove God exists or not is irrelevent to whether or not someone will give it serious consideration".
It means what I said in the OP: to establish by proof or competent evidence, to verify. You can look up ‘
substantiate’ in the dictionary if you don’t believe me. So has the existence of God been verified?
Not on your terms.
This is an ad hominem tu quoque argument that doesn’t explain how it is worth giving serious consideration to Christian beliefs that are based on an unsubstantiated claim. Please explain how your Christian beliefs are worth giving serious consideration when they are dependent on an unsubstantiated claim.
All worldviews are based on what you call "unsubstantiated claims", yet people, including you, still give some of them consideration. No-one, self-identified rationalists included, adopts or considers a worldview because it is built on proven foundations; people adopt worldviews because they make the most sense of the stories they have heard and experienced. Asking whether a worldview has an "unsubtantiated claim" in its' foundation is a complete red-herring when it comes to considering worldviews.
Though it has absolutely no bearing on the discussion, I am curious to know what beliefs I hold that are dependent on an unsubstantiated claim in the same way that your Christian beliefs are dependent on the unsubstantiated claim that your God exists. Please provide some examples.
All worldviews have axioms - inherently unprovable assumptions. I don't know your worldview sufficiently well to identify the specifics of yours. (I'm not at all sure you do either.)
If your question was really "I am not willing to consider any worldview that has an unsubstantiated claim - so can you substantiate Christianity's" then that is the question you should have asked. Of course I would then say that the first clause of that question is demonstrably incorrect since you have adopted a worldview that has an unsubstantiated claim.
But if we are to stick to your original question, you should give Christianity serious consideration if, and only if, it makes more sense of the stories you hear and experience than whatever worldview you currently hold to.