Questions About Jewish Religion: What Judaism, Christianity, and Islam Say

TL;DR: All three Abrahamic faiths trace significant roots to the Jewish tradition. Judaism centers on Torah law and covenant identity John 5:10. Christianity emerged from a Jewish context, affirming that 'salvation is of the Jews' John 4:22 while reinterpreting the law through Jesus. Islam honors the Jewish prophetic lineage but holds that the original message was later superseded. The biggest disagreement? Whether Jewish law remains eternally binding, was fulfilled in Christ, or was abrogated by the Quran.

Judaism

'It is the sabbath day: it is not lawful for thee to carry thy bed.' — John 5:10 (KJV) John 5:10

Judaism is built on the foundation of Torah — divine law given to Moses — and the covenantal relationship between God and the Jewish people. Observance of commandments (mitzvot) is central to Jewish identity and practice. The Sabbath, for instance, is treated with great seriousness: Jewish authorities in the first century challenged a healed man simply for carrying his mat on that day, illustrating how deeply law governed daily life John 5:10.

Jewish identity is not merely religious but also ethnic and communal. Questions about who is a Jew, what constitutes proper worship, and how to interpret scripture have been debated for millennia by rabbis from the Talmudic era through modern scholars like Rabbi Joseph B. Soloveitchik (20th century). The question 'What advantage then hath the Jew?' Romans 3:1 reflects a real theological tension that Jewish thinkers have wrestled with — namely, the meaning and responsibility of chosenness.

Ritual purity, including debates about purification practices, has long been a feature of Jewish religious life John 3:25. Different Jewish movements today — Orthodox, Conservative, Reform, and Reconstructionist — answer questions about Jewish religion in notably different ways, but all affirm the centrality of the covenant with God.

Christianity

'Ye worship ye know not what: we know what we worship: for salvation is of the Jews.' — John 4:22 (KJV) John 4:22

Christianity was born within Judaism and can't be understood apart from it. Jesus was a Jew, his earliest followers were Jews, and the entire New Testament presupposes familiarity with Jewish law and custom. The Gospel of John alone records numerous interactions between Jesus and Jewish religious authorities, including debates about signs, authority, and the law John 2:18. Early Christians grappled deeply with questions about Jewish religion — what to keep, what to reinterpret, and what to set aside.

A striking affirmation in Christian scripture is Jesus's own declaration that 'salvation is of the Jews' John 4:22, acknowledging the Jewish origin of redemptive history. Yet tension also existed: Jewish leaders cited their own law as the basis for opposing Jesus, saying 'We have a law, and by our law he ought to die' John 19:7. Theologians like Paul of Tarsus (1st century) asked pointedly, 'What advantage then hath the Jew? or what profit is there of circumcision?' Romans 3:1, ultimately arguing that the advantage was real but that faith in Christ was now the path to righteousness.

Christians generally hold that the Jewish scriptures (the Old Testament) are divinely inspired and point forward to Christ. Scholars like N.T. Wright have argued extensively that Jesus didn't abolish Jewish law but fulfilled it — a claim that remains contested between Christians and Jews to this day.

Islam

'Then there arose a question between some of John's disciples and the Jews about purifying.' — John 3:25 (KJV) John 3:25

Islam regards the Jewish people (Banu Isra'il) as a people of the Book who received genuine divine revelation through prophets such as Moses, David, and Solomon. The Quran affirms the Torah (Tawrat) as a scripture from God, though Muslim scholars — from classical figures like Ibn Kathir (14th century) to modern scholars — teach that the text was altered over time and that the Quran represents the final, uncorrupted revelation. Questions about Jewish religion are therefore answered in Islam partly by affirming the original message and partly by critiquing later developments.

Islam shares with Judaism a strong emphasis on law (Sharia parallels Halakha in structure), monotheism, and the rejection of any divine intermediary. The Jewish concern for purification practices John 3:25 resonates with Islamic ritual purity (tahara), which is similarly detailed and obligatory. However, Islam holds that the Jewish covenant was superseded by the universal message of Muhammad (610 CE onward), making Jewish law no longer binding on humanity as a whole.

The question of Jewish identity and religious advantage Romans 3:1 is addressed in the Quran by emphasizing that no ethnic or religious group holds automatic favor with God — righteousness and submission (islam) are what matter. This represents a significant theological departure from both Rabbinic Judaism and mainstream Christianity.

Where they agree

All three religions acknowledge the Jewish people as recipients of genuine divine revelation and law Romans 3:1.
All three affirm that Jewish worship and practice — including Sabbath observance and purity laws — reflect real religious obligations given by God John 5:10 John 3:25.
All three recognize that questions about Jewish religion are foundational to understanding the Abrahamic tradition as a whole John 4:22.
All three traditions include internal debates and questioning about signs, authority, and the meaning of scripture John 2:18 John 7:15.

Where they disagree

Issue	Judaism	Christianity	Islam
Status of Jewish Law Today	Eternally binding on Jews; the Torah is the living covenant John 5:10	Fulfilled and reinterpreted through Christ; faith supersedes works of the law John 19:7 Romans 3:1	Superseded by the Quran and Sharia; Jewish law was valid for its time but is no longer universally binding John 3:25
Who Is Jesus?	A Jewish teacher, not the Messiah; the claim to be Son of God was considered blasphemy John 19:7	The Son of God and Jewish Messiah through whom salvation comes John 4:22	A prophet and Messiah in a limited sense, but not divine; the claim of divinity is rejected
Jewish Chosenness	A permanent, covenantal reality with ongoing obligations	Real but now extended to all believers through Christ Romans 3:1	Conditional and historical; no ethnic group holds permanent divine favor Romans 3:1
Validity of Current Jewish Scripture	The Torah and Tanakh are fully authoritative and uncorrupted	Authoritative as Old Testament but interpreted through the New Testament John 4:22	Originally divine but believed to have been altered; the Quran corrects and supersedes it John 3:25

Key takeaways

Judaism holds that Torah law is eternally binding on the Jewish people, with Sabbath and purity observance as core practices John 5:10.
Christianity affirms Jewish origins of salvation — 'salvation is of the Jews' (John 4:22) John 4:22 — while teaching that Christ fulfills and reinterprets the law John 19:7.
Islam honors Jewish prophethood and shares structural parallels with Jewish law John 3:25, but teaches the Quran supersedes the Torah as the final revelation.
All three traditions wrestle with the question of Jewish religious advantage and chosenness, each arriving at a different answer Romans 3:1.
First-century debates about Jewish law, signs, and authority — recorded in the Gospel of John John 2:18 John 7:15 — reveal how questions about Jewish religion shaped the entire Abrahamic world.

FAQs

What is the central law in Jewish religion?

The Torah — the five books of Moses — is the cornerstone of Jewish law. Observance of commandments (mitzvot) governs everything from diet to the Sabbath. Jewish authorities in the first century enforced Sabbath law strictly, as seen when they told a healed man it was unlawful to carry his bed on that day John 5:10. Rabbinic literature expanded these laws into the Talmud, which remains authoritative in Orthodox Judaism today.

Do Christians believe salvation comes from the Jewish tradition?

Yes — Jesus himself, according to the Gospel of John, stated that 'salvation is of the Jews' John 4:22, affirming the Jewish origins of redemptive history. Most Christian theologians, including Paul of Tarsus, acknowledge the Jewish foundation of their faith while arguing that Christ opened salvation to all people. Scholar N.T. Wright and others have written extensively on this Jewish-Christian continuity.

How does Islam view questions about Jewish religion?

Islam views the Jewish people as recipients of genuine revelation who received the Torah from God. However, classical Muslim scholars like Ibn Kathir taught that the text was later altered. Islam shares structural similarities with Judaism — including detailed purity laws John 3:25 and strict monotheism — but holds that the Quran supersedes earlier scriptures. The question of religious advantage is answered by emphasizing personal righteousness over ethnic identity Romans 3:1.

Why did Jewish leaders question Jesus's authority?

Jewish religious leaders in the first century questioned Jesus on multiple grounds — his lack of formal rabbinic training ('How knoweth this man letters, having never learned?' John 7:15), his performance of acts on the Sabbath John 5:10, and his claims about his own identity John 19:7. They demanded signs to validate his authority John 2:18. These confrontations reflect genuine debates about prophetic legitimacy within first-century Judaism.

What does 'purifying' mean in Jewish religious practice?

Ritual purification (tahara) in Judaism involves specific washings and practices to achieve a state of ritual cleanliness required for worship and daily life. A dispute arose between John's disciples and Jewish authorities specifically 'about purifying' John 3:25, suggesting this was a live and contested topic. Jewish purity law is detailed in the Mishnah tractate Tohorot and remains practiced in Orthodox communities today.

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