Jew – Religion or Nationality?

Is a Jew a Jew because of their ancestry or because of their religion?

Some people, when they think of “Jews” think of people that live in Israel. They think of the term “Jew” as a nationality, like a German, or an Italian, or a Spaniard. Others think that a Jew is a Jew because they’re of the Jewish religion. So, who’s right?

Jew – Religion or Nationality?