Show me your proof

[Silver]

Where did the existence comes from?

I can understand your inability to accept that the universe has possibly always existed, and that earth was created as a result of a Big Bang, but claiming that a deity is the creator that always existed would also contradict your claim that the existence around us could not have always existed. Just because science does not yet have all the answers does not mean that a deity is the answer. Choosing the deity route with no evidence to back up the claim is pure laziness.