“In Germany they first came for the Communists, and I didn't speak up because I wasn't a Communist. Then they came for the Jews, and I didn't speak up because I wasn't a Jew. Then they came for the trade unionists, and I didn't speak up because I wasn't a trade unionist. Then they came for the Catholics, and I didn't speak up because I was a Protestant. Then they came for me – and by that time no one was left to speak up.” - Pastor Martin Niemoller
Pastor Martinv Niemoller is speaking about things that he regrets from the times when he was indifferent to things that were happening around him. He never stood up for anyone and just stood by the sidelines as everyone was being taken away. He stood by on others for such a long time that when it was his turn to go everyone was already gone. And no one was there to help him because he never stood up for anyone as no one will for him. He encourages in a way for people to speak up for others and not be as indifferent as he was, before its too late for you.
In this quotation Niemoller uses a lot of anaphora. He repeats the same structure in every sentence. He first declares who it was then the reason why he didn't speak up. He repeats "and I didn't speak up," "I wasn't" and "They came for" for every time he was indifferent toward the situation. His whole quotation has connotation in it. He is making two separate points. For one he is talking about how he regrets not being able to make a change, and second he is making a point. He is stating how things are repeated in history. The same things are repeated in history, but in order to stop the cycle in history, one most step out and make that change.