Been through that when I was a Christian and I don't buy it.
Don't think being a Christian has anything to do with it friend nor anything to do with the Christian God for that matter ... whomever that might be. The Universe is telling us something .. and what ever that message is .. must go through a filter .. and it is through that filter that one percieves the message. If your filter is "Christianity" and assorted dogma .. you will interpret the message on the basis of that filter.
If not .. then by some other filter -- none of this changes the fact that the Universe is speaking .. and one of the things it tells us .. if viewed through the correct filter .. is that existence is eternal.
but lest we put cart before horse .. let us examine who exactly you think the Christian God is ? the one that you left at the alter when you ceased being a follower of HeyZeus .. the annointed one of God .. something like Cyrus .. cept that was Ahura Mazda ... or was it Marduk .. .. matters not cause neither of them is the God of Abe now is it .. and nor was it YHWH ..
Who is the Christian God that you been through .. left at the alter .. and now who or what have you turned to ..