the first steps to sobriety did not require classic belief in a traditional ‘God;’ but they did require that the alcoholic accept his not-God-ness by acknowledging some ‘Power greater’ than himself. The A. A. group itself, clearly, was such a ‘Higher Power.’
Kurtz argues that A.A.’s innovation was to ground the Higher Power not in theology but in empirical group experience, making acknowledgment of personal limitation — not doctrinal belief — the essential spiritual act.
, Not God A History of Alcoholics Anonymous, 2010thesis