[quote=Magic Magnum]But to answer this question specifically, any kind of way to proving the God's concrete existence.How specifically? I don't know, I'm not a scientist. And scientists have a way of proving things through the very last method you'd expect them to.But it would have be some kind of observable and show able proof and nothing something such as "Look at the world around us" or "My toast has a face on it".[/quote]

I'm just selecting interesting things to respond to.

I think we will find that the point of the concept of 'belief' is that there has to be an essence of 'faith.' When I have faith in you to do the right things or get the grades you should etc. I do not base this faith in you on scientific, observable evidence. I think that Magnum is intelligent, cares for himself, has a history of doing the right thing and has a personality which tends towards hard work. I therefore believe that he will do the right thing due to his reputation and I now have faith in him to continue doing that in the future. No scientific evidence could ever prove that you will. But I have looked at all the available evidence, as a scientist would, and with that all in mind, I make a logical, reasoned conclusion. That is what many people call a 'leap of faith' though we must understand that while most people, in a real life situation such as whether I should have faith in Magnum or not, go to the trouble of examining the evidence before deciding to have faith or not, when it comes to the more divine and spiritual, such an approach is deemed ludicrous and mad. But let us try.

Let us assume, for the sake of argument, that God exists. Let us make that a fact. Now, firstly, we must understand why in the world he's put us here. Well, God-logic which can be construed from the Abrahamic faiths suggests to us that at some point we lived in perfect harmony and bliss before disobeying him, causing him to send us down here to test us. He wants to see who will believe in him and who won't. But as is the case in all tests, the one thing you're never given is the answer. That bit comes from you. What we are given are endless hints and suggestions which lead us closer and closer to gaining a wider understanding of the world, ourselves and God. Of course, no matter how much you stare at the sky or watch ants and worms, you're not really going to be convinced that there is a God. Some may make the leap of faith there, others might not see it as sufficient evidence. So God decides to send down books and messengers to help the more cynical along. There is now no religion with a book which does not claim scientific miracles within its scriptures, and upon observation of these 'miracles' we find that many of them do indeed coincide with scientific discoveries made in the past century and unavailable at the time these books were first compiled. Thus a logical person would be naturally driven to wonder at how such scientific discoveries of the past century can be found in such ancient books, and this is where most people stop, choosing to believe in a God, but not any particular one. That is their leap of faith, which is really the easy way of saying "Ok ok, I can see there are lottsa gods, but only one is God, so I believe in whichever one of you is God, now leave me alone and let me into whatever heaven you have for me when I die." And God, since we assume he exists, isn't all too chuffed with that unfortunately as he really wants people to actively believe in the religion he 'sent down' if you will. Only one can be right, right? 

So the journey doesn't stop with belief in God. But that's another tale all together.

To summarise then, the very nature of this world as a 'test' by God to see who will gather all the possible evidences before daring to take a 'leap of faith' makes it impossible to go through the full scientific process when it comes to proving God's existence. We can only gather evidences and proofs which we personally find convincing enough to allow us to take a 'leap of faith' based on research and logic. 

You may now stop assuming.