You lack an understanding of AA. The whole point of the program and the book is to help one find a power greater than themselves.... a spiritual awakening if you will,,,, that will get and keep them sober. Perhaps your father was not ready to do the things asked of him before he joined the church. All of us who get sober find God in order to get and stay sober and live happy and meaningful lives
Your probably right. He just never took God serious until he went to this church. I do know people who went to AA remained sober. My mom,my sister and I went to Alanon. Nice people.