And now, the rest of the story:
Numerous verses identify Israel, in New Testament prophecy, in terms of their tribal associations; however, these associations do not extend beyond the first century. After the destruction of Jerusalem, the nation of Israel, after the flesh, was scattered throughout the earth, and lost all tribal relations.
The vast majority of so-called Jews in the world today are the Ashkenazim Jews, while the remainder of them are the Sephardim Jews. The Ashkenazim Jews have as their background not the nation of Israel but a country called Khazaria, which country at one time was the largest country in Europe. The settlers of Khazaria were Turks and Huns. In A.D. 740 King Bulan of Khazaria decided to adopt the Judaistic religion for his country. A number of Jews were already living there. So he converted to Judaism, along with all his officials, and whole nation ended up being known as a nation of Jews. In 970 Russia came in and dominated the situation, and the Khazars were scattered, many of them going down into Poland and Lithuania. Where at the dawn of our modern civilization the largest concentration of Jews were found. Today, the largest percentage of so-called Jews in the world have as their background this group of people, and not the Hebrew poeple of the 1st century and before.
Today, being a Jew simply means that one is of the Judaistic religion or a convert to it, or else in a "brotherhood" of those who are.