The evidence is the Torah and the existence of the Jewish people.
It and they could easily all be wrong.
Another piece of evidence is the existence of a conscious and free will.
Consciousness and free will do not suggest god's existence all on their own.
The existence of anything proves that there was a creator as well.
If
everything proves that god exists then
nothing proves that god exists in the same regard.
I'm happy taking god's existence on faith. What's your problem? Why the need to "prove" it?