I’m not trying to be controversial, but this is a question humans want answers to. I read the Bible in its original language and I was gifted the code2GOD. When considering belief in GOD, it is usually assumed that belief is merely a matter of attitude and not open to rational discussion. Since when should a subject of faith be proved?
After all, the whole idea of faith is to be convinced without relying on our five senses. If there was evidence, it would be knowledge and not belief.
Not that there is a fundamental problem with knowledge about the existence of GOD, but most believers openly declare that their belief in GOD is nothing but — surprise, surprise — faith. And if this is indeed a belief, then why suddenly the demand to prove it? You can ask them to try to persuade you, explain what leads them to this belief, and so on, but once you start talking about evidence, you move from the plane of belief to that of knowing, and there is no reason to fall into that trap.