Funny thing about ad hoc hypothesising god to avoid testability is that most theists appeal to religious experiences and such to support their theological views. So it actually is testable.
It is very important not to mistake hemlock for parsley, but to believe or not believe in God is not important at all. - Denis Diderot
We are the United States of Amnesia, we learn nothing because we remember nothing. - Gore Vidal
We are the United States of Amnesia, we learn nothing because we remember nothing. - Gore Vidal