Judaism and science

What you'll learn

• How science’s emphasis on evidence and reason has influenced Jewish thought.
• Why Maimonides saw nature as a route to love and awe of God.
• How Jews have responded differently to Darwinian evolution and the Big Bang, including Gerald Schroeder.
• How scientific developments such as genetic engineering stimulate Jewish ethical reflection.

1. The big picture: why science matters for Judaism

Science can influence Judaism in three main ways:

1. It encourages careful use of evidence and reason.
2. It produces discoveries that seem to challenge traditional readings of sacred texts.
3. It creates new ethical questions, especially in medicine and genetics.

Judaism is not simply “faith instead of reason”. Jewish tradition includes intense debate, interpretation and legal reasoning through the Torah, Talmud and later rabbinic commentary. This means many Jewish thinkers have seen scientific knowledge as something to engage with rather than automatically reject.

2. Maimonides: nature reveals the glory of God

Maimonides was a medieval Jewish philosopher, rabbi and physician. His Hebrew name is Moses ben Maimon, often abbreviated as Rambam. He is important because he combined Jewish faith with philosophy, medicine and scientific learning.

In the Mishneh Torah, Maimonides argues that when a person contemplates God’s “great and wondrous works and creatures”, they recognise divine wisdom and are moved to love, praise and awe of God.

This matters for the Judaism and science topic because Maimonides gives a positive religious reason to study the natural world. Science is not necessarily a threat to faith; it can deepen worship.

He also thought that if a literal interpretation of scripture conflicted with a genuinely proven truth, scripture might need to be interpreted non-literally. This does not mean abandoning Torah. It means reading Torah with intellectual seriousness.

3. How science can challenge religious beliefs

Scientific discoveries can challenge Judaism when they appear to conflict with traditional beliefs about creation, humanity or divine action.

The key biblical text is Genesis. Genesis 1 describes God creating the world in six days and humans as made in the image of God. Genesis 2 gives a more human-focused account involving Adam, Eve and the Garden of Eden.

4. Darwinian evolution

Darwinian evolution is the theory that living things develop over long periods through inherited variation and natural selection, where organisms better adapted to their environment are more likely to survive and reproduce.

Why evolution can be challenging

Evolution may seem to challenge Judaism because:

• Genesis appears to describe direct divine creation.
• Humans may seem less “special” if they share ancestry with other animals.
• Natural selection involves struggle, suffering and death.
• Evolution can appear random, whereas Judaism teaches divine purpose.

Jewish responses to evolution

Some strict Orthodox or Haredi Jews reject Darwinian evolution, especially if it is used to deny divine creation. They may argue that Torah has greater authority than scientific theories, which are provisional and changeable.

Many Modern Orthodox Jews accept evolution as the mechanism through which God created life. On this view, Genesis teaches that God is creator and humans have spiritual dignity; it does not need to function as a biology textbook.

Many Reform and Liberal Jews accept the scientific consensus on evolution and read Genesis symbolically. They often focus on the ethical meaning of being made in God’s image: humans have responsibility, dignity and moral awareness.

5. The Big Bang theory and Jewish creation belief

The Big Bang theory is the scientific view that the universe expanded from an extremely hot, dense early state. It does not simply mean “an explosion in space”; it is about the expansion of space itself.

Why the Big Bang can challenge Judaism

The Big Bang may challenge literal readings of Genesis because Genesis describes creation over six days, while modern cosmology speaks of billions of years. It also raises questions about what science can and cannot explain: does it remove the need for God, or does it describe the process through which God creates?

Jewish responses to the Big Bang

Some literalist Jews may reject modern cosmology if they believe it contradicts the Torah’s chronology.

Many Jewish thinkers, however, see the Big Bang as broadly compatible with belief in creation. Genesis begins with God creating the heavens and the earth; the Big Bang also suggests the universe has a finite history rather than being obviously eternal.

A careful answer should avoid saying “the Big Bang proves Genesis”. Science does not prove the theological claim that God created the universe. But it can be interpreted by some Jews as consistent with belief in a beginning.

6. Gerald Schroeder: harmonising Genesis and science

Gerald Schroeder is an Orthodox Jewish physicist and writer. He is known for arguing that modern science and Genesis can be harmonised.

Schroeder argues that the six days of Genesis can be understood from a cosmic or divine perspective rather than from an ordinary human clock on Earth. He uses scientific ideas such as relativity and the stretching of the universe to suggest that billions of years from one perspective could correspond to six creation days from another.

He also argues that the sequence of creation in Genesis broadly fits the scientific development of the universe and life. On evolution, Schroeder is more open to scientific development than a simple literalist, but he rejects the idea that life and humanity are merely purposeless accidents.

Evaluating Schroeder

Schroeder’s view is attractive because it takes both scientific evidence and Jewish scripture seriously. It can help religious believers avoid anti-scientific literalism.

However, critics may accuse him of concordism: trying too hard to make an ancient religious text match modern science. If scientific theories develop, the interpretation may need to change again. Others argue that Genesis is not trying to teach physics at all, so reading relativity into it may miss its theological purpose.

7. Genetic engineering: science as a stimulus to Jewish ethics

Science does not only challenge beliefs about origins. It also creates new moral questions.

Judaism often approaches these issues through halakhah, meaning Jewish law and ethical reasoning.

Important Jewish principles include:

• Pikuach nefesh: the duty to save life, which overrides most other commandments.
• B’tzelem Elohim: humans are made in the image of God, so human dignity must be protected.
• Stewardship: humans are entrusted to care for creation, not exploit it recklessly.
• Healing as a duty: Jewish tradition often sees medicine as permitted and even required.
• Concern about “playing God”: humans must recognise limits and avoid arrogance.

Therapeutic genetic engineering, such as treating a serious inherited disease, may be supported by many Jewish thinkers because it protects life and reduces suffering. Genetic screening for conditions such as Tay-Sachs disease has often been accepted in Jewish communities.

However, enhancement is more controversial. Editing embryos to create “designer babies” could treat children as products, increase inequality, and undermine respect for human dignity. Germline editing is especially difficult because it affects future generations who cannot consent.

8. Overall evaluation: conflict or compatibility?

The strongest answer is usually not “science defeats Judaism” or “Judaism ignores science”. A better judgement is that Jewish responses depend on how scripture and tradition are interpreted.

Literalist approaches protect the authority of Torah but can struggle when scientific evidence is strong. Liberal and non-literal approaches fit modern science more easily but may be accused of adapting religion too quickly. Maimonides and Schroeder show a middle path: using reason and scientific knowledge while maintaining belief in God as creator.

For essays, remember that science affects Judaism in two directions: it challenges some beliefs, but it also deepens awe and creates new areas for ethical responsibility.