What if the world did not speak out?

In the poem “ First They Came for the Jews” by Martin Niemöller, there are lot of examples to solve this question. In the quotes, “First they came for the Jews and I did not speak out because I was not a Jew” (stanza 1), “Then they came for the Communists and I did not speak out because I was not a Communist”(stanza 2) and “Then they came for the trade unionistand I did not speak out because I was not a trade unionist”(stanza 3), shows a big sign of silence and that the man who was a christian pastor, a man who is supposed to be very religious and should be very generous and kind, does not do it because he is simply not any of those people. At the end of the poem, “ Then they came for me and there was no ine left to speak out for me.”(stanza 4), shows the result of not speaking up, it shows that if everyone is silent they will end up like the person in this poem, all alone and scared.