I am an alcoholic who has been sober now for a number of years. I would never have made it this far had it not been for AA. I have met hundreds of AA members and many do not believe in God. Your concern is a very common one, but don't let it put you off. It is more a concept of a "power greater" than the individual. For many in AA that "power" is simply the group. If you were an alcoholic like I was I beg you to keep going with an open mind and look for things you CAN relate to and not worry about the spiritual aspect of it just now. You will be with the greatest mix of people you can imagine, of many faiths and none. You will not be forced to believe anything you don't want to and you will find the power you need from others who have felt exactly as you do now. You will not be judged by anyone else and you will find true support and care from people who have experienced the relentless control of the disease of alcoholism bit found there is a solution. Very best wishes for your recovery and go to AA. I can honestly say I would be dead without AA, and am very grateful that I went to my first meeting.