What is biblical ethics?

🎯 Objectives

By the end of this lesson you will be able to:

• explain in simple words what ethics, Christian ethics and biblical ethics are;
• distinguish an ethics that describes behaviour from an ethics that shows what is right;
• recognise love for God and for your neighbour as the heart of the Bible’s ethics.

📖 Receive

Read these three passages slowly, aloud if you can:

“He hath shewed thee, O man, what is good; and what doth the LORD require of thee, but to do justly, and to love mercy, and to walk humbly with thy God?” — Micah 6:8 (KJV)

Then read Matthew 22:34-40, where a lawyer asks Jesus which is the great commandment, and Romans 12:1-2, where Paul urges believers not to be conformed to this world, but to be transformed.

Notice one thing: none of the three texts is a list of prohibitions. All three speak of a whole life directed towards God and towards others.

🔍 Examine

Every day we make moral choices

Whether or not to tell a colleague the truth. How to use your money. What to watch, what to share on social media, how to treat an elderly parent. Some decisions seem small, others keep us awake at night. But they all have something in common: they confront us with the question “what is the right thing to do?”

That question is the field of ethics. It is not a subject for specialists: every person, believer or not, does ethics every day, perhaps without realising it.

Three words to clarify

• Ethics: reflection on what is morally right or wrong, and above all on why it is so. It does not stop at saying “this is done, this is not”: it looks for the reasons.
• Christian ethics: reflection on what is right and wrong for a disciple of Christ. The starting point is not “what suits me?”, but “what pleases God?”.
• Biblical ethics: Christian ethics that takes the Bible as its norm. It does not grow out of the habits of a church or a culture, but out of what God has revealed in his Word.

The three words are like circles one inside the other. In this course we will move mainly in the innermost circle: what does Scripture teach? The diagram below shows how each level narrows and sharpens the one before:

graph TD
  A["Ethics: what is right, and why?"] --> B["Christian ethics: what pleases God?"]
  B --> C["Biblical ethics: what does Scripture say?"]
  C --> D["Concrete everyday choices"]

The destination is not a theory but life: biblical ethics exists to guide concrete choices.

📌 Morality and ethics

In everyday speech the two words are used almost as synonyms. If we want to be precise, morality concerns the concrete rules of conduct (“do not steal”), while ethics reflects on the foundations of those rules (“why is stealing wrong? where does the value of property and of the person come from?”). To use a sporting image: morality is the rules of the game, ethics is the reflection on why the game has those rules.

Describing or prescribing?

Scholars distinguish two broad ways of doing ethics.

• Descriptive ethics (also called non-normative) observes how people behave and describes it. For example: “Most people in Italy consider a small lie acceptable so as not to hurt someone”. It is a fact, not a judgement.
• Normative ethics asks how people ought to behave. It uses words like “you must”, “it is right”, “it is wrong”.

Biblical ethics is normative. The Bible does not only tell us what human beings do (although it tells it with great honesty, sins included): it tells us what God asks. The fact that “everybody does it” does not make something right, and the fact that “nobody does it any more” does not make it outdated.

	Descriptive ethics	Normative ethics
Question	How do people behave?	How should they behave?
Tool	Surveys, observation, statistics	Principles, values, commandments
Example	“70% think a small lie is acceptable”	“Thou shalt not bear false witness”
Role in the Bible	It honestly records sins too	It reveals what pleases God

A concrete example

Giulia works in a shop. The owner asks her to tell customers that a product “is the last one left”, even though there are ten in the stockroom. “Everybody does it,” she says, “it’s just marketing.” A descriptive ethics would stop there: it is indeed a common practice. Biblical ethics, however, asks other questions: is what I would say true or false? Am I loving the customer or manipulating them? Am I honouring God with my words?

Giulia does not necessarily have to choose between obeying the owner and honouring God through a confrontation. She can respectfully suggest an honest alternative (“it’s one of our most popular items”), explain why she does not feel able to lie, and pray for wisdom. You can see that biblical ethics is not just a “no”: it is the search for a true and loving way to act.

The centre: loving God and your neighbour

If we had to sum up biblical ethics in one sentence, we could use Jesus’ own. Asked about the great commandment, he answers by quoting two Old Testament texts: to love God with all your heart, soul and mind (Deuteronomy 6:5) and to love your neighbour as yourself (Leviticus 19:18). And he adds that on these two commandments hang all the Law and the Prophets (Matthew 22:40).

This does not mean the other rules do not matter. It means they are hung on this centre, as a door hangs on its hinges. “Do not steal” is a concrete way of loving your neighbour; “have no other gods” is a concrete way of loving God. Micah says the same thing in other words: justice, mercy, humility before God.

Why a believer must learn to reason

Someone might think: “I have the Bible, why do I need ethics?”. The answer is simple: the Bible is sufficient, but it must be understood and applied. Today we face questions the first readers never knew: assisted reproduction, artificial intelligence, fake news circulating online. Scripture does not name these things, but it gives us clear principles for facing them.

Moreover, even when a rule is crystal clear, life sometimes puts us in complicated situations: two duties that seem to clash, wounded people who need accompanying, decisions without perfect solutions. That is why Paul speaks of a renewed mind, able to discern God’s will (Romans 12:2), and the letter to the Hebrews describes mature Christians as people who, by practice, have learned to distinguish good from evil (Hebrews 5:14).

Biblical ethics, then, is not a manual to consult now and again. It is a path of growth: we learn to think like Christ, in order to live like Christ.

🔗 Connect

The question “what is good?” runs through the whole of Scripture:

• Genesis 3:1-6: the first temptation is precisely about who decides what is good and evil: God or the human being?
• Deuteronomy 30:15-20: God sets before his people life and good, death and evil, and invites them to choose life.
• Psalm 119:105: the Word is a lamp for our feet, that is, a light for the concrete choices of every day.
• Ephesians 5:8-10: believers are called to walk as children of light, proving what is acceptable to the Lord.

It is the same spirit as the believers in Berea: receiving the Word readily, examining it carefully and connecting it to their own lives. In this course we will apply the BereaWay Method precisely to moral choices.

🙏 Apply

Take a few minutes, on your own or with your group:

1. Think of the last difficult moral choice you faced. On what basis did you decide: convenience, other people’s opinion, habit, Scripture?
2. Which of the three requirements of Micah 6:8 (justice, mercy, humility) seems hardest for you to live out at the moment?
3. In which areas of your life do you feel the strongest pressure to “be conformed to this world” (Romans 12:2)?
4. Ask the Lord for a renewed mind, able to recognise and love what is good.

📚 Go Deeper

• Read the whole of Micah 6:1-8 and notice the context: God does not reject worship, but worship that is cut off from justice.
• Read Romans 12 and underline all the practical instructions that follow verses 1-2: this is ethics in action.
• If you have not done so yet, the course How to Study the Bible helps you read correctly the texts we will use on this path.

In the next lesson we will look at five features that make biblical ethics different from any other.