In case anyone didn’t know who was on that list first:

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

https://en.wikipedia.org/wiki/First_They_Came

The first two have been used as insults by Republicans for decades now…

Edit:

Technically this is the original translation, written by a Christian Pastor:

When the Nazis came for the communists, I kept quiet; I wasn’t a communist.

When they came for the trade unionists, I kept quiet; I wasn’t a trade unionist.

When they locked up the social democrats, I kept quiet; I wasn’t a social democrat.

When they locked up the Jews, I kept quiet; I wasn’t a Jew.

When they came for me, there was no one left to protest.