First of all: What God? There are several of them and all followers claim that people of other religions will burn in hell …
Lack of evidence
Law of probabilities
It is wrong always, everywhere, and for anyone to believe anything upon insufficient evidenceâ€. You should only believe in things for which you have good evidence.
There is as much evidence for the existence of God (any particular god at all) as there is for the existence of unicorns.
And although they might be more polite about it, someone who follows a particular faith may have the same sort of opinion about the existence of the gods of other faiths.
The presumption of Atheism
This is an argument about where to begin the discussion of whether or not God exists. It says that we should assume that God does not exist, and make it the duty of people who believe in God to prove that God does exist.
We should adopt the same policy that we do with people who insist the Loch Ness Monster exists:
Start by assuming that the Loch Ness Monster doesn’t exist. Form an idea of what would constitute the Loch Ness Monster. Then see if there’s anything that “proves” that particular thing exists.
God is unnecessary
Science explains everything
Atheists argue that because everything in the universe can be explained in a satisfactory way without using God as part of the explanation, then there is no point in saying that God exists.
Occam’s Razor
The argument is based on a philosophical idea called Occam’s Razor, popularised by William of Occam in the 14th century.
“The simplest answer is the best answer. “
Intelligent Design offers a creator as the simplest explanation, but they don’t realize that god must be a very complex being, an existence that is the most complex answer of them all. And how did God be created?
Not convincing
Weakness of the proofs that God Exists
The Argument from Design
World is beutiful and in order
Actually the universe is not particularly beautiful and orderly. And even if it was, why should there be a designer? And modern science shows that most of the natural things we think of as designed are just the products of processes like evolution.
The “Ontological” Argument
We think of God as a perfect being. If God didn’t exist he wouldn’t be perfect. God is perfect, therefore God exists.
Most atheists think this argument is so feeble they don’t bother dealing with it. Try to exchange “God†in the sentence above with “Flying killer tomatoes†and beware …
The problem of evil
The Argument from Evil
Most religions say that God is completely good, knows everything, and is all-powerful. But the world is full of wickedness and bad things keep happening. This can only happen if…
God is unwilling to prevent evil, in which case he is not good
or
God doesn’t know about evil, in which case he does not know everything
or
God can’t prevent evil, in which case he is not all powerful
or
Some combination of the above
Science explains
The best explanation
For most of human history God was the best explanation for the existence and nature of the physical universe. But during the last few centuries, scientists have developed explanations that are much more logical, more consistent, and better supported by evidence.
God is meaningless
Relative Philosophy
Some philosophers think that religious language doesn’t mean anything at all, and therefore that there’s no point in asking whether God exists.
They would say that a sentence like “In the beginning God created the heavens and the earth” is neither true or false, it’s meaningless; in the same way that “colourless green ideas sleep furiously” is meaningless.
God is in the mind
Psychological Explanations of Religon
Human beings believe in God because they want:
• A father figure to protect them from this frightening world
• Someone who gives their lives meaning and purpose
• Something that stops death being the end
• To believe that they are an important part of the universe, and that some component of the universe (God) cares for and respects them
Since religion is just a psychological fantasy, human beings should abandon it so that they can grow to respond appropriately to deal with the world as it is.
God is a social function
Sociological Explanations of Religion
Some people think that religions and belief in God fulfill functions in human society, rather than being the result of God actually existing.
• Giving a meaning and purpose to life
• Binding people together in groups
• Supporting the moral code of the group
• Supporting the social code of the group
God is not apparent
Always hide in the shadows
Why should an existing God just give “hints†of its existence? Why not making miracles every day, so clear that everybody couldn’t deny them?
Why this neurotic need of “want us to believe in God†instead of just show off God as a supreme being.
Partly, this list are shortened from http://www.bbc.co.uk/religion/religions/atheism/beliefs/reasons_1.shtml
Kind regards
Tskogstrom