Science is philosophy. But I said above, no need to hold to a threshold as high as science to make the point – the demonstration is not forthcoming, the evidence is not available, no tests avail. You can lower the bar way down to very casual non-scientific terms, and faith is still what gets you there, to belief. And by the teachings of your own faith!].
If you have a proof for the existence of God, don’t waste your time here, you should be famous by Friday! Let the world know! That would be big news.
But please don’t tell me you are getting the term “Proof for God’s existence” as the proof itself, like saying it poofs something into existence. A “proof of God’s existence” is a proposed argument. It may point to what it supposes is evidence that counts as “proof”, but supposing that the argument is the proof itself confuses two very different senses of proof. A “geometric proof” admits of no evidence, for example. “Proof of guilt” is another meaning for the word. Either your confusing these, or someone is pulling your leg.
Or you really should be famous by Friday!
-TS