First they came https://en.wikipedia.org/wiki/First_They_Came

First they came for the Communists And I did not speak out Because I was not a Communist

Then they came for the Socialists And I did not speak out Because I was not a Socialist

Then they came for the trade unionists And I did not speak out Because I was not a trade unionist

Then they came for the Jews And I did not speak out Because I was not a Jew

Then they came for me And there was no one left To speak out for me