Friedrich Rittelmeyer ( born Dillingen an der Donau October 5 , 1872 â `` died Hamburg March 23 , 1938 ) was a German Protestant theologian . Friedrich Rittelmeyer ( 5 October 1872 , Dillingen an der Donau - 23 March 1938 in Hamburg ) was a Protestant German minister , theologian and co-founder and driving force of The Christian Community .