If someone asked you right now, “What is the gospel?”, could you answer them?

Not vaguely. Not by saying that Jesus loves them, that they should go to church, or that they need to invite Jesus into their heart. Could you actually explain the gospel from Scripture in a couple of minutes?

It is a question I have been thinking about quite a bit lately, partly because I want to make sure my kids can answer it. But the more I have thought about it, the more I have realized that this is not just a question for kids, new Christians, or people who do not believe in Jesus.

It is a question every follower of Jesus should be able to answer.

And perhaps more importantly, it is a message every follower of Jesus needs to keep hearing.

For a long time, I think I viewed the gospel primarily as something for unbelievers. You share the gospel with someone so they can become a Christian. Once they believe, they are saved, and then it is sort of off to the races. Now we move on to prayer, Bible study, obedience, serving, generosity, spiritual disciplines, and all the other parts of following Jesus.

But that gets the Christian life almost exactly backward.

The gospel is not something we graduate from.

It is the foundation beneath everything else.

So, What Is the Gospel?

Thankfully, we do not have to invent a definition.

Paul gives us one.

In 1 Corinthians 15, he writes:

“Now I would remind you, brothers, of the gospel I preached to you, which you received, in which you stand, and by which you are being saved.”

1 Corinthians 15:1–2

Notice who Paul is writing to.

Christians.

He is not preaching an evangelistic sermon to unbelievers. He is writing to people who have already received the gospel. Yet Paul says, essentially, I want to remind you of the gospel.

Then he tells them what it is:

“For I delivered to you as of first importance what I also received: that Christ died for our sins in accordance with the Scriptures, that he was buried, that he was raised on the third day in accordance with the Scriptures.”

1 Corinthians 15:3–4

There it is.

Jesus Christ died for our sins. He was buried. He rose from the dead.

And Paul calls this message “of first importance.”

The gospel begins with a problem we cannot solve ourselves. We have sinned against a holy God. We cannot work our way back to Him. We cannot become moral enough, religious enough, generous enough, disciplined enough, or sincere enough to erase our sin.

So God did for us what we could never do for ourselves.

Jesus lived the life we could not live. He died for our sins. He was buried. And three days later, He walked out of the grave.

Christianity is therefore not primarily a message about what you need to do.

It is an announcement about what God has done.

That distinction matters enormously.

Every other part of the Christian life comes after that.

We obey because of what He has done.

We worship because of what He has done.

We pray because of what He has done.

We forgive because we have been forgiven.

We love because He first loved us.

We serve because Christ served us.

We give grace because we live entirely by grace.

The Christian life is not our attempt to earn God's favor. It is our response to a favor we could never earn.

The Power of God

Paul takes this even further in Romans:

“For I am not ashamed of the gospel, for it is the power of God for salvation to everyone who believes.”

Romans 1:16

That is an extraordinary statement.

Paul does not merely say that the gospel explains the power of God.

He says the gospel is the power of God for salvation.

And the rest of Romans begins to show us just how far that salvation reaches.

We have all sinned and fallen short of God's glory. Yet we are made right with God as a gift, through the grace found in Jesus Christ (Romans 3:23–24).

We were God's enemies, but through Jesus we have been reconciled to Him (Romans 5:10).

Sin no longer has the final claim on us because we have been united with Christ in His death and resurrection (Romans 6).

Even in our weakness, the Spirit helps us and intercedes for us (Romans 8:26).

And nothing in all creation can separate us from the love of God in Christ Jesus (Romans 8:38–39).

That is the power of the gospel.

It saves us from the penalty of sin, but it does not stop there. The same grace that saves us begins changing us. It changes what we love, how we see ourselves, how we see other people, what we hope for, how we suffer, how we forgive, and what we live for.

And one day, that work will be complete.

The gospel doesn't merely get you in. It carries you home.

We Never Move Past the Gospel

This is something Donald Whitney emphasizes in Spiritual Disciplines for the Christian Life. The spiritual disciplines are not a way of earning God's acceptance. They are practices through which people who have already received God's grace pursue deeper fellowship with Him and become more like Christ.

That distinction is incredibly important.

Because without the gospel, even good Christian practices can slowly turn into a religious scorecard.

Did I read my Bible today?

Did I pray enough?

Did I go to church?

Am I serving?

Am I giving?

Am I being a good husband, wife, father, mother, friend, or Christian?

Those are good questions until we begin using the answers to determine whether God should be pleased with us.

Then Christianity becomes exhausting.

Grace says something completely different.

Grace says that you were unable to save yourself, so Jesus saved you.

You were guilty, and Jesus took your guilt.

You were separated from God, and Jesus brought you near.

You could not earn your place at the Father's table, so Jesus gave you His.

Now you pray, study Scripture, worship, serve, give, fast, and obey God not to convince Him to love you, but because in Christ, He already does.

That changes everything.

The Gospel Is for Monday Morning

This is where I think I have sometimes underestimated the gospel.

I understood why the unbeliever needed it. I did not always understand why I still needed it.

But what happens when I fail?

I need the gospel.

What happens when pride creeps in because I think I am doing pretty well?

I need the gospel.

What happens when I am ashamed of something I have done?

I need the gospel.

What happens when someone sins against me and I do not want to forgive them?

I need to remember how much I have been forgiven.

What happens when suffering comes and I begin wondering whether God has abandoned me?

I need to remember the cross and resurrection.

What happens when I become obsessed with my own accomplishments, comfort, reputation, money, or success?

I need the gospel to remind me that my life was bought at a price and no longer belongs entirely to me.

The gospel keeps bringing us back to Jesus.

It humbles us because our sin was serious enough to require the cross.

It gives us confidence because Jesus willingly went to that cross for us.

It destroys our ability to look down on other people because we are saved entirely by grace.

It gives us the ability to admit when we are wrong because our identity does not depend on pretending we are right.

It allows us to repent without despair because failure does not get the final word.

And it gives us hope in suffering because the resurrection reminds us that even death does not get the final word.

That is why the gospel cannot simply be Christianity's introductory lesson.

It is Christianity.

Grace Changes the Way We Obey

This also changes how we think about obedience.

There is a massive difference between saying, “I need to obey so God will accept me,” and saying, “God has accepted me through Christ, so I want to obey Him.”

From the outside, those lives might occasionally look similar.

Inside, they are completely different.

One is driven by fear.

The other is driven by love.

One constantly wonders, Have I done enough?

The other knows, Christ has done enough.

That does not make obedience less important. Grace is not permission to ignore Jesus. If anything, grace gives us a much deeper reason to obey Him.

Jesus did not save us so that we could remain exactly as we were.

But even our transformation is rooted in grace.

We do not become more like Jesus so that God will finally love us.

We become more like Jesus because He already has.

Preach the Gospel to Yourself

Maybe that is why Paul told Christians in Corinth, “I would remind you...of the gospel.”

They already knew it.

They still needed to hear it.

So do I.

So do my kids.

So does the person who has followed Jesus for fifty years.

And so does the person who has never followed Him at all.

We need to know the gospel well enough to explain it. But more than that, we need to know it well enough to recognize when we have quietly started living as though it were not true.

When you fail, remember the gospel.

When you succeed, remember the gospel.

When you are ashamed, remember the gospel.

When you are proud, remember the gospel.

When obedience is difficult, remember the gospel.

When suffering comes, remember the gospel.

When you worship, remember the gospel.

When you pray, remember the gospel.

When you encounter someone who seems completely undeserving of grace, remember the gospel.

Because so were you.

Christ died for our sins.

He was buried.

He rose again.

And for everyone who believes, that is not merely the message that began the Christian life.

It is the power of God that carries us through it.