I was always told that god did loads of stuff that was evidence of his existance. Ususally very brutal things too (b#st@rd).
Jesus walked on water and raised the dead we are told.
It seems to me also that the older the story, the more exaggerated it is...y'know...talking snake......global flood.
There are those that claim god speaks to them now and they alone 'know' it. (Cuckoo!!!)
Why doesn't imaginary sky daddy do anything tangible now (make his existance obvioous beyond doubt)? Why has he stopped (not that I believe he started..?