Is There Still Real Right and Wrong Without God?

When Cheating Feels Wrong — But Why?

You’re playing a board game with friends. Someone moves a piece when they think no one is looking. You catch them. A hot, uncomfortable feeling rises in your chest. It’s not just that you might lose — it’s that what they did is wrong in a way that seems to go beyond your own feelings. Where does that sense of “that’s unfair” come from? And is it pointing to something real about the world?

Many people believe that some moral truths are objective — they hold no matter what anyone thinks. Bullying isn’t wrong because your school forbids it; it’s wrong because of something deeper. But if that’s true, what makes those rules real? Some philosophers answer: God. Others reply: no, morality can stand on its own, or it’s just a human invention. The argument between them is one of the oldest and most personal debates in philosophy. It doesn’t just stay in books; it sneaks into your own head every time something feels deeply unjust.

The Divine Lawgiver Idea

One of the simplest moral arguments for God’s existence goes like this: If there are objective moral obligations, they need an authority. Human laws don’t just float in the air; they are created by governments or monarchs. So maybe moral laws also need a lawmaker — a perfect one that stands above all human societies. Many theists think that lawmaker is God.

A modern version is called divine command theory (DCT). The philosopher Robert Adams (1937–2024) developed a careful form of it. He argued that moral obligations are best understood as commands from a loving, perfectly good God. On this view, to do wrong is to disobey God’s requirements. Adams wasn’t saying the word “wrong” means “commanded by God”; rather, he claimed that what makes an action a real moral duty is that a good God instructs us to do it. This, he thought, explains why morality feels both authoritative and personal.

But there’s an old puzzle that won’t go away. It appears in Plato’s dialogue Euthyphro, and it goes like this: Take any moral rule, like “do not lie.” Is the rule right because God commands it, or does God command it because it is already right? If you pick the first horn, morality seems arbitrary — God could have commanded the opposite and lying would be good. If you pick the second horn, then rightness exists independently of God, and the divine command explanation collapses.

Adams responded by saying God is essentially good, so God’s commands are never random; they always aim at what is truly good. That’s why the dilemma doesn’t trap his view. Still, many philosophers remain unconvinced. Some, like J. L. Mackie (1917–1981), think objective moral values are “queer” — strange things that don’t fit into a world explained by science. For them, the first step of the whole argument is already shaky: maybe there are no objective moral facts at all. So the argument from divine lawgiving only has force for those who already accept that morality is real and needs a transcendent ground.

An Evolutionary Puzzle about Morality

Even if objective moral truths exist, how could we come to know them? Evolution equipped us with strong moral feelings: a tendency to care for our families, to punish cheaters, to cooperate. Those instincts helped our ancestors survive. But evolution selects for survival, not for truth. The philosopher Sharon Street (writing in the early 21st century) sharpened this into a challenge. If our deepest moral beliefs are shaped by blind evolutionary forces, she argues, there’s no reason to think they track real moral facts. It would be an enormous coincidence if a mind built for survival just happened to lock onto genuine right and wrong.

Street’s target is moral realism — the view that objective moral truths exist independent of our minds. She isn’t trying to defend God; she thinks we should abandon moral realism altogether. But the theist can flip the argument. If a good God guided the evolutionary process, then it’s no accident that our hearts and minds can grasp genuine value. God would have a reason to create beings who can know the difference between good and evil. So the theist can say: “You’re right, Street — in a purely natural world, moral knowledge would be a lucky miracle. But luck isn’t a problem if a mind stands behind the process.”

Non-theistic moral realists, like Erik Wielenberg (early 21st century), resist this move. They suggest that moral truths are just brute facts, as fundamental as numbers, and that evolution could have wired us to recognize some of them without any divine guidance. The debate is very much alive. At its center is a question: does our ability to know right and wrong fit more comfortably in a universe made by a person, or one that just is?

Kant’s Leap of Reason

Immanuel Kant (1724–1804) took a different path. He didn’t try to prove God’s existence by pointing to moral facts. Instead, he argued that to be a wholehearted moral agent, you must believe in God — as a rational practical need, not as a theoretical discovery.

Kant observed that morality commands us to seek the highest good: a world where both moral virtue and happiness are achieved together, and where happiness is the result of being virtuous. But the natural world doesn’t work that way. Good people suffer, and selfish people often thrive. If the universe is a mindless machine, there’s no reason to think that acting morally will ever bring about a world where virtue and happiness align. So, Kant said, if you’re seriously committed to doing what’s right, you must also believe that reality is set up in a way that makes the highest good possible. That belief is equivalent to believing in God — a supreme moral orderer who can ensure that goodness and happiness ultimately meet.

He called this a postulate of practical reason. It’s not a claim that we know God exists through science or logic; it’s a principle you must accept to avoid moral despair. Critics reply that maybe we don’t need to guarantee the highest good — we just have to try our best. Kant would say that without the hope that justice can be final, moral effort becomes absurd. This argument doesn’t prove anything about God’s reality, but it shows why some thinkers see belief in God as woven into the very act of taking morality seriously.

Why This Matters to You

You face moral decisions every day. When you refuse to join in teasing someone, or when you tell the truth even though it costs you, you’re acting as if right and wrong are real — not just personal tastes. The question is: does that reality need a foundation beyond human opinion?

If there’s no God, you could still be a decent person, and many atheists are. But what gives moral claims their authority? Could all of morality be a human invention, like the rules of a game? Some philosophers accept that possibility, even if it feels troubling. Others find it so hard to believe that they see morality itself as a clue — a sign that the universe has a moral heart.

The debate is not about forcing anyone into belief. It’s about noticing what’s at stake. Every time you feel that hot sting of injustice, you’re touching a question that has stretched from Plato’s Athens to today’s science labs. And how you answer it — even quietly — can shape the kind of person you become.

Think about it

1. If you found out that all your moral feelings were just survival tricks from evolution, would you still treat cruelty as really wrong? Why or why not?
2. Imagine a society where everyone agrees that right and wrong are totally made up by humans, and no deeper truth backs them. How would life in that society feel different?
3. Suppose believing in God made you a kinder and braver person, but you were still uncertain whether God existed. Would it be reasonable to choose to believe anyway?