Bell used his authority as a leader in the Ecumenical Movement and since 1938 as Lord Spiritual to influence public opinion in Britain and the Nazi authorities in Berlin, and back those persecuted by the Nazi regime. His public support is said to have contributed to Pastor Martin Niemöller's survival by making his imprisonment in Sachsenhausen in February 1938 (and later in Dachau) widely known in the British press and branded as an example of the Nazi regime's persecution of the church. Thus Hitler backed off from Niemöller's planned execution in 1938.