Attributed to Reinhold Niebuhr, The A.A. Grapevine, January 1950, p. 6–7; also June Bingham, Courage to Change, p. iii (1961), where the version differs somewhat: "O God, give us serenity to accept what cannot be changed, courage to change what should be changed, and wisdom to distinguish the one from the other". Alcoholics Anonymous has used this prayer, with minor changes in wording, since about 1940. According to the first source, Dr. Niebuhr said, "It may have been spooking around for years,https://en.wikiquote.org/wiki/Prayer