Nearly everyone has some sense that certain things are right and others are wrong.

People may disagree about many moral questions, but even people who reject God still speak about fairness, injustice, cruelty, honesty, and kindness. When someone says, “That isn’t right,” he is making a moral judgment.

Where does that sense of right and wrong come from?

The Bible gives us an answer.

Paul wrote:

“For when Gentiles who do not have the Law do instinctively the things of the Law, these, not having the Law, are a law to themselves, in that they show the work of the Law written in their hearts, their conscience bearing witness and their thoughts alternately accusing or else defending them” (Romans 2:14–15).

Paul was speaking about Gentiles, people who had not received the Law of Moses as Israel had. They did not possess the written Law, yet they still showed an awareness of right and wrong.

Their conscience bore witness.

That does not mean every person always knows exactly what is right. It certainly does not mean everyone agrees about morality. Human beings can ignore their conscience, excuse their sin, and become hardened to things that once troubled them.

But the existence of conscience itself tells us something.

We were created as moral beings.

A dog does not feel guilty because it stole another dog’s food. A lion does not wonder whether killing another animal was morally wrong. Human beings are different. We ask whether something was right, wrong, fair, cruel, honest, or unjust.

We do not merely ask, “Did I get caught?”

Sometimes we ask, “Should I have done that?”

That question points beyond ourselves.

Our conscience can accuse us when we know we have done wrong. It can also defend us when we believe we have acted rightly. That is exactly what Paul described in Romans 2.

But conscience is not the same thing as Scripture.

Our conscience can be influenced by our upbringing, culture, habits, and choices. Scripture even warns that a conscience can become defiled or hardened. That is why we cannot simply say, “My conscience does not bother me, so what I am doing must be right.”

God’s Word remains the standard.

The conscience is a witness, but God is the Judge.

Romans 1 also tells us that God has given mankind evidence of Himself through creation.

“For since the creation of the world His invisible attributes, His eternal power and divine nature, have been clearly seen, being understood through what has been made, so that they are without excuse” (Romans 1:20).

Creation tells us there is a Creator. Conscience tells us there is such a thing as right and wrong.

But neither creation nor conscience saves us.

They point us toward our need for God.

The problem is not that mankind has absolutely no awareness of right and wrong. The problem is that we do not perfectly obey even the truth we already know.

We condemn dishonesty and then lie.

We demand fairness but sometimes treat others unfairly.

We complain about selfishness while protecting our own interests.

We know hatred is wrong, yet we hold grudges.

Our conscience does not prove that we are good. Quite often, it proves the opposite. It reminds us that we have failed even by standards we ourselves recognize.

That is why we need more than a moral compass.

We need a Savior.

Jesus did not come merely to make bad people behave a little better. He came to save sinners.

Jesus said:

“Do not think that I came to abolish the Law or the Prophets; I did not come to abolish but to fulfill” (Matthew 5:17).

Jesus perfectly fulfilled what we have failed to do. He lived without sin, died for sinners, and rose again.

Knowing right from wrong cannot save us.

Having a conscience cannot save us.

Trying harder cannot save us.

Only Christ can save us.

Our conscience may tell us, “You have done wrong.”

The gospel tells us where forgiveness can be found.

The question is not merely, “Do I know right from wrong?”

The greater question is, “What have I done with Jesus Christ?”

God has not left us without witness. Creation points to Him. Conscience reminds us that right and wrong are real. Scripture tells us who He is and what He requires.

And the gospel tells us that the One we have sinned against is also the One who provided the way for us to be forgiven.

Our sense of right and wrong should not cause us to congratulate ourselves for being moral.

It should cause us to recognize how badly we need Christ.