Interfaith Dialogue: Jewish Engagement and Boundaries

Speaking Across the Divide

For nearly two thousand years, the relationship between Judaism and Christianity was defined more by persecution than by dialogue. Forced disputations, blood libels, crusades, inquisitions, and pogroms made genuine conversation impossible. The relationship with Islam, while more varied, also included periods of deep hostility alongside periods of cultural cooperation.

The transformation that began in the mid-twentieth century — from hostility to dialogue — is one of the most remarkable developments in modern religious history. It has not been simple, and it is not complete. But it has changed the landscape of interfaith relations in ways that previous generations could not have imagined.

The Turning Point: Nostra Aetate

The single most important document in modern interfaith history is Nostra Aetate, issued by the Second Vatican Council on October 28, 1965. In a few pages, the Catholic Church:

• Rejected the deicide charge (that Jews were collectively responsible for Jesus’s death)
• Condemned all forms of antisemitism
• Affirmed the spiritual bond between Christianity and Judaism
• Acknowledged the ongoing validity of God’s covenant with the Jewish people

This declaration did not erase centuries of harm, but it created the conditions for genuine dialogue. Subsequent Vatican documents deepened the relationship, including official recognition that the covenant with the Jewish people was never revoked.

The Soloveitchik-Heschel Debate

Within Judaism, the proper scope of interfaith dialogue has been debated since it began. Two towering figures staked out contrasting positions:

Rabbi Joseph Soloveitchik (1903-1993), the leading Modern Orthodox thinker, published “Confrontation” in 1964, arguing that Jews should engage in practical cooperation with Christians on social and ethical issues but should avoid theological dialogue. Soloveitchik believed that each faith community’s relationship with God is unique and incommunicable — that attempting to explain Jewish theology in Christian terms (or vice versa) inevitably distorts both.

Rabbi Abraham Joshua Heschel (1907-1972), the great Conservative theologian, took a different approach. Heschel believed that genuine encounter required theological depth. His friendship with Cardinal Augustin Bea, which influenced Nostra Aetate, demonstrated that deep theological engagement could produce transformative results.

Both positions continue to influence Jewish approaches to interfaith work. Most Orthodox institutions follow Soloveitchik’s guidelines, while Reform and Conservative organizations tend toward Heschel’s more expansive model.

Jewish-Muslim Dialogue

Jewish-Muslim relations present different challenges and opportunities. The Israeli-Palestinian conflict has complicated interfaith efforts, as political tensions often overshadow theological common ground. Nevertheless, Jewish-Muslim dialogue has grown significantly, particularly in Europe and North America.

Points of commonality include strict monotheism, dietary laws, emphasis on law and practice, and shared reverence for Abraham. Organizations like the Muslim-Jewish Advisory Council have worked to build bridges on shared policy concerns.

Theological Framework: The Noahide Laws

Judaism has a built-in framework for respecting other faiths: the Noahide Laws. According to rabbinic tradition, God gave seven universal moral commandments to all humanity (through Noah), including prohibitions against murder, theft, and idolatry, and the requirement to establish courts of justice.

Righteous non-Jews who observe these laws are considered to have a share in the world to come. This framework allows Judaism to affirm the spiritual validity of other traditions without compromising its own distinctive claims.

The Work Continues

Interfaith dialogue remains both urgent and unfinished. Rising antisemitism, Islamophobia, and religious polarization make the work of building understanding more important than ever. The Jewish tradition’s ability to maintain its own identity while genuinely engaging with others — to hold firm boundaries while extending open hands — remains one of its most valuable contributions to a pluralistic world.