Sooner or later, the enemies of the Jewish people become the enemies of the world. Nazism, Soviet communism, radical Islam. All single out the Jews for special obloquy, but eventually the world pays the price. This has led some to call the Jewish people the canary in the coal mine: the canary, with its limited lung capacity, dies to let the miners know there is lethal gas.
But despite everything the Jewish people have survived. Better is the image of the sentinel in the watchtower. We have seen the oncoming enemy and called out in alarm.