Tuvia Book
Author, educator, Tour-Guide, artist

Dealing with intermarriage: From the Bible to Birthright

Once again the phenomenon of intermarriage is very much in the headlines. This old-new issue has been given renewed prominence in the post-Pew Report frenzy, which claims that interfaith marriages in the United States have now reached endemic proportions of 71%. Seven out of ten Jews intermarry. (It is important to note that the report does not take into account, “the Birthright generation.”)

This phenomenon is not a new one. One just needs to take a trip down history lane and examine how Ezra and Nehemiah dealt with this issue two and a half millennia ago in Persian ruled Judea. Following this historical analysis, which highlights both Ezra and Nehemiah’s ineffectiveness at tackling this recurrent problem, it is fascinating to read about the positive results that are achieved through the current Taglit-Birthright project.

For they have taken some of their daughters as wives for themselves and for their sons, so that the holy race has intermingled with the peoples of the lands.”

-(Ezra, 9)

“In those days I also saw that the Jews had married women from Ashdod, Ammon and Moab. As for their children, half spoke in the language of Ashdod, and none of them was able to speak the language of Judah, but the language of his own people.”

-(Nehemiah, 13)

The issue of intermarriage was the bane of both Ezra and Nehemiah’s tenures. Intermarriage had reached widespread proportions and had become one of the most serious problems facing emerging second commonwealth. In order to protect the holiness of God’s chosen people; Nehemiah wanted the community to embrace endogamy, or marriage only within the group.

Given that considerable intermarriage had taken place both amongst the common folk and the priestly clan, the second commonwealth’s leadership hoped to learn from the mistakes of the first. With this platform, Nehemiah risked alienating large segments of the population, however he felt that intermarriage was a threat to the very survival of the Jewish people and could substantially weaken the community.

The strength of Nehemiah and Ezra’s conviction is cited as one of the driving forces behind the extreme measures taken to combat intermarriage. Both convened public assemblies with the express purpose of promulgating edicts to force those in mixed marriages to divorce their spouses. Ezra was mostly unsuccessful in his attempts.  The community delayed the assemblies complaining of bad weather and the fact that the entire community could not attend. Nehemiah, who arrived many years after Ezra’s initial appeal, was faced with many cases of mixed marriages throughout society, a further testament Ezra’s failure. Though the mass divorce strategy was, by most measures, a failure, both Nehemiah and Ezra managed to extract a promise that the Jews would not to marry foreigners in the future.

At the close of the previous century the founders of Birthright tried to understand the causes of what many consider to be the biggest problem facing Jewish continuity. Namely, that Judaism is the only monotheistic faith in numerical decline. Rather than the “stick” method utilised by both Ezra and Nehemiah, the Birthright idea is to use the “carrot” of Israel to bring back Jews back from the abyss of assimilation.

Tuvia's AI Birthright Group At Tel Gezer

Tuvia guiding an “Amazing Israel” Birthright group at Tel Gezer

When Birthright was founded, back in 1999, roughly seventy percent of American Jews had never visited the Jewish State and sixty percent were in interfaith marriages. The rationale of the founders was, “let’s get the cohort most likely have a serious relationship leading to marriage (ages 18-26) and let’s bring them to Israel.” Birthright is an apolitical, areligious organisation. There is no “agenda” other than to provide young Jews with a positive connection to their heritage and their homeland, their birthright.

Initially the cynics were cynical. What good is there in taking a bunch of non-connected, jaded and affluent American university students to Israel for only ten days. Are they going to come back and say, “I believe” they asked.

While past studies have found that (both long and short term) Israel trip participants return with a greater appreciation of their Jewish roots and Jewish identity, a longitudinal study released by the Maurice and Marilyn Cohen Center for Modern Jewish Studies at Brandeis University researchers in 2009, and updated in 2012, was the first to suggest that the trips also affect marriage behavior. Its results, based on following 500 Reform or non-affiliated Birthright alumni, showed that a whopping 72% of those who went on the trip married within the faith, compared with 46% of people who applied for the trip but weren’t selected in a lottery!

Taglit (Birthright) participants are 45 percent more likely than nonparticipants to be married to someone Jewish. Taglit’s impact on inmarriage was constant across all levels of childhood Jewish education.”


–   Jewish Futures Project, The Impact of Taglit-Birthright Israel: 2012 Update

One cannot replace or artificially create an experience. One has to be there to feel it. There is no better way for Israel trip participants to strengthen their Jewish identity then to walk through the places where key events that shaped the destiny of our people occurred! As Yonatan Netanyahu z”l so eloquently stated:

In this search through our past we come upon other periods-of tranquility and liberty, when we were the people of the land as well as the people of the book.”

In Jewish terms, we need to understand that we are all links in the chain of Jewish continuity, part of a bigger dramatic story of God, people and land. By walking through the land and feeling it, smelling it, seeing it, tasting it and hearing it, we begin to hear ourselves.

It is important to bear in mind that throughout the public debate about intermarriage from the Biblical period through the contemporary era, conversion to Judaism was, and still is, a viable option. Even Judaism’s most famous king, David, one of whose decedents it is traditionally believed will establish the messianic age, was descended from Ruth, the Moabite, who converted to Judaism.

Your people shall be my people, and your God, my God.”



– Ruth 1:16

About the Author
Dr. Tuvia Book was born in London and raised in both the UK and South Africa. After making Aliya at the age of 17 and studying in Yeshiva he volunteered for the IDF, where he served in an elite combat unit. Upon his discharge he completed his BA at Bar-Ilan University, as well as certification in graphic design. He then served as the Information Officer at the Israeli Consulate of Philadelphia, while earning a graduate degree in Jewish Studies. Upon his return to Israel, Dr. Book graduated from a course of study with the Israeli Ministry of Tourism, and is a licensed tour guide. Tuvia has been working in the field of Jewish Education, both formal and informal, for many years. He has guided and taught Jewish students and educators from around the English-speaking world for some of Israel’s premier educational institutions and programs. Tuvia has been guiding groups for Birthright Israel since its inception and, in addition, has lectured throughout North America, Australia, Europe and South Africa. Tuvia served as a Shaliach (emissary) for the Jewish Agency for Israel as the Director of Israel and Zionist Education at the Board of Jewish Education of Greater New York (Jewish Education Project). He was a lecturer/educational guide at the Alexander Muss Institute for Israel Education (AMIIE) in Israel for a decade. Tuvia has lectured at both Bar Ilan University and Hebrew University. He was a Senior Editor and Teaching Fellow at the Tikvah Fund. He is a research associate at the Hudson Institute. Tuvia is the author and illustrator the internationally acclaimed Israel education curriculum; "For the Sake of Zion; A Curriculum of Israel Studies" (Fifth edition, Koren 2017), and "Moral Dilemmas of the Modern Israeli Soldier" (Rama, 2011) and has a doctorate in Israel Education. His latest book, "Jewish Journeys, The Second Temple Period to the Bar Kokhba Revolt – 536 BCE-136 CE," was published by Koren this year. To order:
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