Somebody cuts in front of you in line. A friend shares something you told them in confidence. Your boss takes credit for your work. What comes out of your mouth in those moments? Almost always some version of “that’s not fair.”

Notice what you just did. You appealed to a standard. You assumed there is a way people ought to treat each other, and that the person who wronged you should have known it. You didn’t invent that standard on the spot, and you expect the other person to be bound by it even though they never agreed to it. Every human being on the planet does this, every day, in every culture. We all live as if right and wrong are real.

Where do these standards come from? That’s really what people are asking when they ask, “Why does God get to decide what’s right and wrong?” Sometimes the question comes with an edge, something more like, “Who gave God the right to boss me around?” Either way, it’s a fair question. Asking it is not rebellion. It’s the first step toward an answer.

Let’s try the alternatives first

Suppose God doesn’t decide. Then who does?

Maybe the majority decides. Right and wrong are whatever most people agree on. But we’ve run that experiment. Majorities have approved of slavery, and majorities have approved of genocide. If the majority defines morality, then the lone voice saying “this is wrong” is by definition mistaken, and moral progress becomes impossible. Nobody actually believes that. We celebrate the people who stood against the crowd, think of reformers like MLK or Frederick Douglass.

Maybe each person decides for themselves. Your truth, my truth. This one sounds generous right up until someone else’s personal truth involves harming you. The moment you say, “You can’t do that to me,” you’ve abandoned the theory. Personal morality only works if nobody’s moralities ever collide, and they always collide.

Maybe the powerful decide. Whoever holds the most strength writes the rules. Most people recoil from this one immediately, and they should. But notice something: if there is no God, this is where things actually land. Strip away a moral lawgiver above humanity, and rules become whatever the strong can enforce. The very people who resent the idea of God’s authority usually resent the rule of raw power even more.

Every alternative puts morality on shifting ground, and a shifting standard is not really a standard. It’s a mood.

What Christians actually claim

The Bible’s answer starts in its first sentence: “In the beginning God created the heavens and the earth” (Genesis 1:1). God gets to define reality because God made reality. That includes moral reality. An author has rights over her story that no character in it has. An architect understands the building in a way no tenant does. The Maker of human beings knows what human beings are for, and “what something is for” is where right and wrong come from. A watch that keeps time is a good watch. A life that runs according to its Designer’s purpose is a good life.

But hold on, because that answer alone could still leave you with a tyrant. A god who is merely powerful and merely first could make arbitrary rules, and obeying him would be nothing nobler than ducking a bully. That is not the God of the Bible, and this is the part that changes everything.

Scripture never presents God’s commands as arbitrary. It presents them as expressions of His character. “You are good, and you do what is good; teach me your statutes” (Psalm 119:68). God doesn’t consult a rulebook above Himself, and He doesn’t roll dice. Goodness is what God is like. His commands are simply His character written down for creatures like us. Asking “why does God get to define good?” is a bit like asking “why does the sun get to define daylight?” It’s not that the sun won an election. Light is what the sun gives off. Goodness is what God gives off.

Many people believe God’s rules exist to spoil their fun. However, Moses told Israel to keep God’s commands “for your own good” (Deuteronomy 10:13). For your good. God’s instructions are not a fence built to keep you from happiness. They are a fence built at the edge of a cliff to keep you from falling. The Designer’s instructions and the creature’s flourishing are the same thing, because the God giving the instructions is the same God who designed you and loves you.

But it doesn’t always feel that way

Humanity took that deal, and we’ve been living in the wreckage since. It turns out that creatures who define their own morality don’t become gods. They become the kind of world you read about in the news.

So how do you know God isn’t holding out on you? How do you know His motives are good? Christians point to one event. The God who wrote the moral law was wronged by every one of us who broke it. He had every right to collect the debt. Instead, He came in person, in Jesus Christ, and paid it Himself. The Judge stepped down from the bench and took the sentence. Whatever else you conclude about God’s rules, you cannot conclude that the One who went to a cross for you is indifferent to your good.

The Bible says it this way: “God’s kindness is intended to lead you to repentance” (Romans 2:4). Not His threats. His kindness. God’s authority and God’s affection are not two different things pulling against each other. They come from the same heart.

The real question underneath

Here’s the honest bottom line. “Why does God get to decide?” usually isn’t an abstract philosophy question. It’s a trust question. It’s asking, “Is the one in charge good, and is He for me?” And that question has an answer you can examine. Read one of the accounts of Jesus’s life, Mark is the shortest, and watch how the Son of God uses authority. He touches lepers. He feeds crowds. He welcomes the people everyone else wrote off. Then, He dies for His enemies.

That’s who decides what’s right and wrong. Honestly? We could do a lot worse than a King like that. In fact, we have. Every alternative on the list is worse, because every alternative eventually hands the gavel to someone who did not die for you.

If you’ve got a question you’d like answered in this series, we’d love to hear it. And if you’d rather talk in person, our doors are open on Sunday. Bring the hard questions. They’re welcome here.