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Jewish ethical teachings on bioethics: HSC Studies of Religion

Syllabus dot point

“Ethics: describe and explain Jewish ethical teachings on bioethics OR environmental ethics OR sexual ethics (this page: bioethics)”

14 min read

Quick answer

Jewish bioethics is worked out through halakhah (Jewish law): the Torah, developed in the Talmud and codes and applied through rabbinic responsa. Its core teachings are b'tzelem Elohim (every person is made in God's image, Genesis 1:27, so every life has infinite worth), pikuach nefesh (saving life overrides almost every other commandment: "live by them" and "not die by them", Leviticus 18:5 and Yoma 85b), the duty to heal and to rescue (Exodus 21:19; Leviticus 19:16) and lo tirtzach ("You shall not murder"). These oblige medical treatment, support life-saving organ donation and fertility treatment, require abortion when the mother's life is at risk (Mishnah Ohalot 7:6) and forbid active euthanasia, with Orthodox, Masorti and Progressive authorities differing on harder cases.

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  1. What this dot point is asking
  2. The answer
  3. In one sentence
  4. Try this
  5. Exam-style questions
  6. Practice questions

What this dot point is asking

In the Judaism depth study the syllabus asks you to describe and explain Jewish ethical teachings in ONE area: bioethics, environmental ethics or sexual ethics. This page covers bioethics: the ethics of medicine and the life sciences at the beginning of life, during illness and at the end of life.

Recent questions need named teachings with precise sources, applied to specific issues, with awareness of diversity: 2022 (describe ONE teaching, 3 marks), 2023 (explain how ONE teaching encourages adherents to "do good", with Psalm 37:3 as stimulus), 2024 (outline ONE teaching, then explain how it is reflected in your area) and 2025 (explain TWO teachings, and a 20-mark response on how Jewish ethical teachings guide adherents "to navigate the world today").

The must-know spine

Method: Torah, Talmud, codes (Mishneh Torah, Shulchan Arukh), responsa. Teachings: b'tzelem Elohim (Genesis 1:27); saving one life saves a world (Mishnah Sanhedrin 4:5); pikuach nefesh (Leviticus 18:5; Yoma 85b), limited by murder, idolatry and forbidden relations (Sanhedrin 74a); duty to rescue (Leviticus 19:16; Sanhedrin 73a); permission to heal (Exodus 21:19; Bava Kamma 85a); lo tirtzach (Exodus 20:13; Deuteronomy 5:17); be fruitful (Genesis 1:28). Cases: foetus not a full person until birth, mother's life first (Mishnah Ohalot 7:6); goses fully alive; Rema on Yoreh De'ah 339:1.

The answer

How Jewish ethics works

Jewish ethics is expressed mainly through halakhah (Jewish law, literally "the way to walk"). It flows from the covenant: God gave Israel the Torah, and living by its commandments (mitzvot) is the covenant response. Guidance comes in layers:

  1. The Written Torah (and the rest of the Tanakh).
  2. The Oral Torah: the Mishnah (compiled about 200 CE) and the Talmud, which discuss and apply the commandments.
  3. Codes of law, such as Maimonides' Mishneh Torah (12th century; Maimonides was himself a physician) and the Shulchan Arukh of Joseph Karo (16th century), with the glosses of Moses Isserles (the Rema) for Ashkenazi practice.
  4. Responsa (she'elot u-teshuvot): answers by rabbinic authorities to new questions, the main way halakhah addresses modern medicine.

Movements differ in how they use this system. Orthodox Judaism treats halakhah as binding and develops it through recognised authorities. Masorti (Conservative) Judaism treats halakhah as binding but evolving; its Committee on Jewish Law and Standards issues responsa. Reform (Progressive) Judaism treats halakhah as a guide to be weighed with individual conscience and contemporary ethics; the Central Conference of American Rabbis publishes Reform responsa. That is why conclusions can differ while the core principles are shared.

Core ethical teachings

1. B'tzelem Elohim: humans are made in God's image
"So God created humankind in his image" (Genesis 1:27). Every life has infinite and equal worth, whatever its length, quality or capacity. The Mishnah teaches that whoever destroys a single life is regarded as if they destroyed an entire world, and whoever saves a single life as if they saved an entire world (Mishnah Sanhedrin 4:5). Because infinity cannot be divided, even a short span of life is of infinite value.
2. Pikuach nefesh: saving a life
Saving human life overrides almost every other commandment. The Talmud derives this from Leviticus 18:5, "You shall keep my statutes and my ordinances; by doing so one shall live", commenting "and not die by them" (Yoma 85b). So a Jew must break Shabbat to take a sick person to hospital and must eat on Yom Kippur if fasting endangers life. Only three prohibitions may not be broken even to save life: murder, idolatry and forbidden sexual relations (Sanhedrin 74a). This limit is crucial in bioethics: you may not kill one person to save another.
3. The duty to heal and to rescue
Exodus 21:19 requires someone who injures another to pay so that "he shall cause him to be thoroughly healed"; the Talmud reads this as permission for the physician to heal (Bava Kamma 85a). Leviticus 19:16, "Do not stand idly by the blood of your neighbour" (a common rendering), is applied as an obligation to rescue a person in danger (Sanhedrin 73a). Medicine is therefore not interference with God's will but a partnership with God in healing, and visiting the sick (bikur cholim) is a mitzvah.
4. Lo tirtzach: you shall not murder
"You shall not murder" (Exodus 20:13; Deuteronomy 5:17). Life belongs to God, not to the individual, so neither the patient nor the doctor may deliberately end an innocent life.
5. Be fruitful and multiply
"Be fruitful and multiply" (Genesis 1:28) is counted as the first commandment of the Torah, which shapes strongly positive attitudes to fertility treatment.

Applying the teachings

Abortion

  • Status of the foetus. Judaism values the foetus as potential life that deserves protection, but it is not regarded as a full person (nefesh) until birth. Exodus 21:22 to 23 sets a monetary penalty for causing a miscarriage, not the penalty for taking a life, and the Talmud describes the embryo in its first forty days as "mere water" (Yevamot 69b).
  • The mother's life comes first. Mishnah Ohalot 7:6 rules that when a birth endangers the mother, the foetus may be removed, "for her life comes before its life"; but once its head (or the greater part of its body) has emerged, it may not be harmed, because one life is not set aside for another. Abortion is therefore required, not merely permitted, when the mother's life is at risk.
  • Diversity. Orthodox authorities differ on other cases: some permit abortion for serious threats to the mother's physical or mental health, others are stricter. Masorti and Reform authorities generally give greater weight to the woman's wellbeing and conscience, while treating abortion as a grave decision. No movement treats abortion as morally trivial.

Fertility treatment

Because of "be fruitful and multiply" and the value placed on family, Judaism is broadly supportive of fertility treatment. IVF using the couple's own gametes is widely accepted. Donor sperm and donor eggs raise halakhic questions (lineage, the status of the child, and in Orthodox law concerns about adultery and mamzerut), so Orthodox authorities are cautious and differ; Masorti and Reform authorities are generally more accepting. Israel provides extensive state support for IVF, reflecting these values.

Organ donation

Pikuach nefesh gives strong support to organ donation that saves a life. Living donation (for example a kidney) is praised when the donor is not put at serious risk. Donation after death raises two issues: respect for the body (kavod ha-met) and the definition of death. Many authorities, including Israel's Chief Rabbinate, accept brain-stem death under strict conditions, while some Orthodox authorities accept only cardio-respiratory death, which limits some donations. Masorti and Reform authorities encourage donation.

End of life

  • No hastening of death. A dying person (goses) is regarded as fully alive in every respect, and nothing may be done to hasten death. Active euthanasia and assisted suicide are forbidden in Orthodox and Masorti Judaism, and Reform responsa have generally opposed active euthanasia.
  • No obligation to prolong dying. The Rema's gloss on the Shulchan Arukh (Yoreh De'ah 339:1) permits removing an external impediment that is preventing the soul from departing, while forbidding any act that shortens life. The Talmud records sensitivity to suffering: Rabbi Judah the Prince's maidservant prayed for his release when he was suffering (Ketubot 104a), and Rabbi Hanina ben Teradyon, dying as a martyr, refused to hasten his own death, saying it is better that the One who gave life should take it (Avodah Zarah 18a).
  • Modern application. Authorities differ on withholding versus withdrawing ventilators, dialysis and artificial nutrition; many permit not starting futile treatment. All encourage pain relief and palliative care, and Israel's Dying Patient Act (2005) sought to reflect these halakhic distinctions.

Why Jews can reach different conclusions

Factor Effect
Movement (Orthodox, Masorti, Reform) Different authority given to halakhah and to individual conscience
Different authorities within Orthodoxy Different readings of precedent, for example on brain-stem death and abortion for maternal health
Weighing principles Pikuach nefesh versus respect for the body; infinite worth of life versus relief of suffering
New technology Responsa must reason by analogy from ancient cases to new situations

A strong answer shows the shared foundation (infinite worth of life, saving life, never murdering, duty to heal) and the legitimate diversity of application.

Answering "Explain TWO ethical teachings relevant to bioethics" (5 marks)

Step 1: Name the two teachings

For example: pikuach nefesh and lo tirtzach (the pair in NESA's 2025 sample answer), or b'tzelem Elohim and the duty to heal.

Step 2: Source each accurately

Pikuach nefesh: Leviticus 18:5 with Yoma 85b. Lo tirtzach: Exodus 20:13 or Deuteronomy 5:17.

Step 3: Apply each to a bioethical issue

Pikuach nefesh: medical treatment on Shabbat, organ donation. Lo tirtzach: prohibition of active euthanasia; limits on abortion.

Step 4: Add one sentence on diversity

For example, movements differ on brain-stem death or on abortion for the mother's health.

Common traps
Citing sources vaguely
"Leviticus 19" or "the Talmud" is not enough; give the verse (Leviticus 18:5 or 19:16) and the tractate (Yoma 85b, Sanhedrin 73a).
Saying pikuach nefesh overrides everything
It does not override the prohibitions on murder, idolatry and forbidden relations (Sanhedrin 74a).
Treating the foetus as a full person in Jewish law
Judaism protects the foetus but gives priority to the mother's life until birth.
Confusing "not prolonging dying" with euthanasia
Removing an impediment to death may be permitted; hastening death is forbidden.
Presenting Judaism as monolithic
Name the movement or authority when views differ.

In one sentence

Jewish bioethics applies halakhah to medicine through the teachings that every person is made in God's image, that saving life overrides almost every commandment, that there is a duty to heal and rescue, and that innocent life may never be taken, producing a shared commitment to preserving life and relieving suffering with diverse rulings on abortion, fertility treatment, organ donation and end-of-life care.

Try this

Q1. Outline ONE Jewish ethical teaching relevant to bioethics, with a source. (2 marks)

  • What the marker wants. For example pikuach nefesh with Leviticus 18:5 and Yoma 85b.

Q2. Explain Jewish teaching on organ donation. (4 marks)

  • What the marker wants. Pikuach nefesh, respect for the body, the definition of death, and diversity of views.

Q3. Analyse how Jewish ethical teachings guide adherents in decisions about fertility treatment. (5 marks)

  • What the marker wants. Genesis 1:28, acceptance of IVF with the couple's gametes, halakhic questions about donors, and differences between movements.

Exam-style questions

Questions in the style of NESA exam questions on this dot point, each with a worked answer. They are written by ExamExplained unless tagged "Past paper"; the year shows the paper a question is modelled on.

2025 HSCPast paper5 marks
Explain TWO ethical teachings relevant to ONE of the following areas: Bioethics, Environmental ethics, Sexual ethics.
Show worked answer →

Criteria (NESA 2025 marking guidelines, SoR I Q16(b) and SoR II Q27(b)). 5 marks: a thorough explanation of TWO ethical teachings relevant to the chosen area, integrating relevant and accurate terminology. 4: a sound explanation. 3: an explanation of TWO teachings. 2: a description of at least ONE teaching. 1: statements about Judaism.

Model for bioethics (the pair NESA's own sample answer used).

  1. Pikuach nefesh (saving a life). Preserving human life overrides almost every other commandment. The Talmud derives it from "you shall live by them" (Leviticus 18:5): live by the commandments, "and not die by them" (Yoma 85b). So a Jew must break Shabbat or eat on Yom Kippur to save a life, and must seek and give medical treatment.
  2. Lo tirtzach (you shall not murder). "You shall not murder" (Exodus 20:13; Deuteronomy 5:17) prohibits taking innocent life. Together with the belief that life belongs to God, it underlies the prohibition of active euthanasia and limits on abortion.

Source note. NESA's published sample answer cites "Lev.19:6" for pikuach nefesh, but Leviticus 19:6 concerns sacrificial offerings. Cite Leviticus 18:5 (with Yoma 85b) and, for the duty to rescue, Leviticus 19:16 ("Do not stand idly by the blood of your neighbour", Sanhedrin 73a).

Source: NESA, 2025 HSC Studies of Religion examination and marking guidelines.

2024 HSCPast paper7 marks
(a) (i) Outline ONE ethical teaching in Judaism. (2 marks) (ii) Explain how the teaching outlined in part (a) (i) is reflected in ONE of the following areas within the religious tradition of Judaism: Bioethics, Environmental ethics, Sexual ethics. (5 marks)
Show worked answer →

Criteria (NESA 2024 marking guidelines). (i) 2 marks: outlines ONE ethical teaching. (ii) 5 marks: a detailed and accurate explanation of how the teaching is reflected within Judaism in the chosen area, integrating relevant and accurate terminology; 4: accurate explanation; 3: some explanation; 2: general statements; 1: statements about Judaism.

(i) Outline. B'tzelem Elohim: every human being is created "in the image of God" (Genesis 1:27), so each life has infinite and equal worth; the Mishnah teaches that whoever saves a single life is regarded as if they saved an entire world (Mishnah Sanhedrin 4:5).

(ii) How it is reflected in bioethics.

  • Because every life is of infinite worth, a life may not be shortened even by a moment: active euthanasia is prohibited, and a dying person (goses) is treated as fully alive.
  • The same value obliges saving life: organ donation that saves life is supported by most authorities, and all movements promote medical care.
  • Life is not valued by quality or usefulness, so disability or age does not reduce the duty of care.
  • Movements apply it differently in hard cases (for example the definition of death and withdrawing treatment), which shows the teaching interpreted through halakhah.

Source: NESA, 2024 HSC Studies of Religion examination and marking guidelines.

2023 HSCPast paper5 marks
Trust in the Lord, and do good. Psalm 37:3. With reference to the stimulus, explain how ONE ethical teaching in Judaism is applied in order to encourage adherents to do good. In your answer, refer to ONE of the following: bioethics, environmental ethics, sexual ethics.
Show worked answer →

Criteria (NESA 2023 marking guidelines). 5 marks: an accurate and detailed explanation of how ONE ethical teaching encourages adherents to "do good" in the chosen area, integrating the stimulus with clear and relevant examples and accurate terminology. 4: accurate, using the stimulus. 3: an explanation that may refer to the stimulus. 2: general statements.

Model for bioethics. Psalm 37:3 links trust in God with doing good. The duty to heal, derived from Exodus 21:19 ("he shall cause him to be thoroughly healed"; the Talmud reads this as permission for the physician to heal, Bava Kamma 85a), and the obligation not to "stand idly by the blood of your neighbour" (Leviticus 19:16) turn trust in God into action: Jews are encouraged to become doctors, to visit the sick (bikur cholim), to donate blood and, for most authorities, organs, and to support medical research. Trusting God does not mean waiting passively; doing good means partnering with God in healing.

Source: NESA, 2023 HSC Studies of Religion examination and marking guidelines.

2022 HSCPast paper3 marks
Describe ONE ethical teaching in Judaism. In your answer, refer to ONE of the following: Bioethics, Environmental ethics, Sexual ethics.
Show worked answer →

Choose Bioethics. For 3 marks, name the teaching, describe it, and anchor it in a Jewish source.

Teaching: pikuach nefesh, the duty to preserve human life.

Describe it: because every person is made in the image of God (b'tzelem Elohim) and life is sacred, saving a life takes precedence over almost all other commandments. This shapes Jewish bioethical positions, obliging medical treatment and supporting life-saving organ donation, while prohibiting active euthanasia.

Source it: the Talmud derives pikuach nefesh from Leviticus 18:5, "you shall live by them", adding "and not die by them" (Yoma 85b), and the duty to rescue from Leviticus 19:16. A response naming pikuach nefesh, describing how it guides a bioethical issue, and citing a source earns full marks.

Source: NESA, 2022 HSC Studies of Religion examination.

Practice questions

Original practice questions graded from foundation to exam level, each with a full worked solution. Try them before revealing the solution.

foundation3 marks
Outline the principle of pikuach nefesh and give ONE example of how it applies in bioethics. (Original)
Show worked solution →

Pikuach nefesh means that preserving human life overrides almost all other commandments. The Talmud derives it from Leviticus 18:5, "you shall live by them", adding "and not die by them" (Yoma 85b). In bioethics it obliges a Jew to seek urgent medical treatment even on Shabbat or Yom Kippur, and it is the main basis on which most authorities support organ donation that saves a life.

Marking: 1 for the definition, 1 for a source, 1 for an accurate application.

core5 marks
Explain Jewish teaching on abortion. (Original)
Show worked solution →

Judaism values the foetus as potential life that deserves protection, but it is not regarded as a full person (nefesh) until birth. Exodus 21:22 to 23 imposes a monetary penalty for causing a miscarriage, not the penalty for taking a life, and the Talmud describes the embryo in the first forty days as "mere water" (Yevamot 69b). Mishnah Ohalot 7:6 rules that when a birth threatens the mother's life the foetus may be removed, "for her life comes before its life". Therefore abortion is required when the mother's life is at risk. Beyond that, Orthodox authorities differ: some permit abortion for serious threats to the mother's health, including mental health, while others are stricter. Masorti and Reform authorities generally allow more room for the woman's wellbeing and conscience, while treating abortion as a serious decision.

Marking: 5 for sources, the core ruling, the status of the foetus, and diversity across movements.

exam8 marks
Analyse how Jewish ethical teachings guide decisions at the end of life. (Original)
Show worked solution →
Principles
Life belongs to God and every moment has infinite value (Genesis 1:27; Mishnah Sanhedrin 4:5); "You shall not murder" (Exodus 20:13).
Prohibition of hastening death
A goses is fully alive; active euthanasia and assisted suicide are forbidden across Orthodox and Masorti Judaism, and the Reform movement has generally opposed active euthanasia.
Not prolonging dying
The Rema (Yoreh De'ah 339:1) permits removing an impediment that delays death; the Talmud's account of Rabbi Hanina ben Teradyon (Avodah Zarah 18a) and of Rabbi Judah the Prince's maidservant praying for his release (Ketubot 104a) show sensitivity to suffering. Modern authorities differ on withholding versus withdrawing life support and on artificial nutrition.
Care
Pain relief and palliative care are encouraged; visiting the sick (bikur cholim) is a mitzvah.
Analysis
A shared core (never actively end life; relieve suffering) with legitimate diversity about how far treatment must continue shows halakhah applying ancient texts to modern medicine.

Marking (Original, modelled on NESA 8-mark criteria): 8 for an analysis linking principles, sources, practice and diversity.

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