Your Identity is the Key: Reflections on Romans 6

A Summary of the Katy Bible Sermon “Death as Assurance of Life”, preached by Matt Mancini on May 24th, 2026.

As we continue our journey through Romans, it can feel like Paul suddenly shifts gears in chapters 6 and 7. Many readers approach these chapters as if Paul has moved from theology to morality—as though he is now simply teaching Christians how to behave. But when we zoom out and follow Paul’s argument as a whole, we see that he has never left the subject of assurance. In fact, the driving focus from chapter 5 all the way through chapter 8 is the permanence of our justification.

To understand how Romans 6 and 7 fit into the bigger picture, it’s helpful to review where Paul began.

In the opening chapters of Romans, the verdict was devastating: apart from Christ, every human being stands guilty before a holy God. We are all under sin, under wrath, and utterly incapable of saving ourselves. But then comes the glorious solution: justification by grace alone, through faith alone, in Christ alone.

This justification is accomplished through a principle called federalism, or covenant headship. Just as we were accounted guilty because of our first head, Adam, we are now accounted righteous because of our new head, Jesus. When Jesus died, those of us who trust Him were accounted as having died in Him.

The Question Raised by Grace

But when you really understand this "theological math"—that it all depends on Jesus and not on your works—it naturally raises a serious question: "If what Paul’s saying is true, and justification is a gift received through faith alone, should we just sin all we want so that grace can keep multiplying to cover it?"

Some might even argue that sinning more actually glorifies God more because it gives His grace a bigger stage to shine on. Paul’s response is the strongest negation possible in the Greek language: Me genoito. In our modern vernacular, that’s an emphatic, "Oh, heck no!"

Why is the idea so unthinkable to Paul? Because it misunderstands the purpose of grace. Grace is not merely God’s way of rescuing us from sin’s penalty. Grace also rescues us from sin’s power. Grace doesn’t just cover your stumbles; it empowers you not to stumble in the first place.

You Are Dead to Sin

Paul’s answer to the problem of sin in the Christian life isn’t a list of new rules; it’s a reminder of identity. He says, "How shall we who died to sin still live in it?"

Notice: "died" is in the past tense. Paul is not describing something Christians are slowly trying to achieve. He is describing something that has already happened. If you are in Christ, you have died to sin. You aren't just "unresponsive" to it, nor have you merely "renounced" it—something fundamental has happened to you spiritually.

When you were justified, you were "baptized" or united into Christ. This spiritual reality—of which water baptism is but the outward symbol—means that His death became your death and His resurrection became your new life. The "old you"—the version of you that was a slave to sin in Adam—is dead and buried.

Your Juneteenth Moment

A helpful illustration comes from American history. In 1863, the Emancipation Proclamation officially ended slavery in the United States. Yet, it wasn't until June 19, 1865—Juneteenth—that slaves in Galveston, Texas, heard the news. For over two years, they were legally free but continued to live as slaves because they didn't know they had been freed.

Many Christians live exactly like that. They are legally free from the slavery of sin, but they still live as if they are under its authority. This passage in Romans 6 is your Emancipation Proclamation. Sin has no legitimate authority over you anymore. When you say, "I can’t help it, this is just who I am," you are resubmitting yourself to an abusive master who no longer has any rightful claim over you.

Walking in Newness of Life

So, what does this mean practically?

If you have grown complacent, using grace as a "get out of jail free" card to continue in sin, you need to examine yourself. To live as a slave while claiming to be free is a dangerous contradiction.

But if you are struggling—if you keep stumbling and it wrecks you—take heart. Your battle with sin is actually evidence of new life. A dead man doesn’t fight. You are fighting because you are no longer a slave.

The Christian life is not fundamentally about trying harder to become someone we’re supposed to be. It is about walking in who you already are in Christ. You have died with Him. You have been raised with Him. Sin is no longer your master.

Now, go live in the freedom Christ has already secured for you.