Glenn Beck has a history of appropriating Martin Niemoller’s famous poem, “First They Came…” – one of the most memorable descriptions of the creep of Nazi totalitarianism – for his own purposes, often by way of describing his own self-martyrdom, because of course it’s really about people like him.
From Crooks and Liars
The simple answer is that he really probably doesn’t know the full quote and can’t be bothered to look it up. He knows it has something to do with Jews and then the Nazi coming for the someone. And nothing else.