Mordechai said to respond to Esther, "Do not think that you can save yourself [from Haman's decree of annihilation] because you are in the royal palace" (Esther 4:13).
Esther, the heroine of the Purim episode, received this sharp rebuke from Mordechai. No Jew should ever assume that anti-Semitism will affect only others but not oneself. No one has immunity. Every Jew must know that he or she is part of a unit, and a threat against any Jew anywhere in the world is a threat to all Jews.
History has unfortunately repeated itself many times. Spanish Jews who held powerful governmental positions were sent into exile along with their brethren. Jewish millionaires and members of European parliaments were cremated in Auschwitz ovens. Throughout the ages, those who had thought to escape anti-Semitic persecution by concealing their Jewish identities sadly learned that this effort was futile.
Esther accepted Mordechai's reprimand and risked her life to save her people. In fact, the Megillah (Book of Esther) tells us that Esther had not revealed her Jewish identity because Mordechai had instructed her to keep it a secret. She never would have stayed hidden in the palace and watched her people perish. Mordechai spoke his sharp words not to her, but to posterity.
Some people simply refuse to accept history's painful lessons. In defiance, they continue to say that they will be different. Neither any individual who feels secure for any reason nor any community that lives in what it considers to be a safe environment should have this delusion of immunity.
Mordechai's message reverberates throughout the centuries: "Do not think that you can save yourself by hiding when other Jews are being persecuted."