Tuuvi, you have had some excellent answers already.
But here is mine: When you start defending your belief with arguments that "God" might be something quite ordinary, you at the very same time weaken your very own position, as it will be very hard to then defend why it wouldn't just BE something ordinary.
You can see God in a baby's smile. Most people will just see a baby's smile, without referencing it to a book written 2000 years ago.
When you talk about smiting, eternal fires of hell, creation... You will start to get my agnostic attention.
Bookmarks