Every one of us has something we point to. It might not feel like boasting. But there is something there, some reason we feel like we are standing on solid ground. For some people it is what they have built, a career, a house, a family. For others it is more religious than that. The tradition they stand in, the church they belong to, the circle they run with.
Religious boasting is the hardest kind to see in yourself. It doesn't feel like pride. It feels like conviction.
The Judaizers who had crept into the Galatian churches would have told you the same thing. They weren't trying to corrupt those believers, at least not in their own minds. Circumcision, the law, the marks of the flesh: these were the things that set God's people apart. And here were Gentile believers walking around without those marks, and these men could not leave it alone. They had to get them in line.
Paul says that is flesh. All of it. And in the closing verses of this letter, he sets one thing against it.
The Flesh’s Boast
Paul opens this closing section by drawing attention to his own handwriting. He typically dictated his letters to a secretary. Not this one. He wrote every word himself. Some commentators think his eyesight was poor, which would explain the large letters. Whatever the physical reason, the point is plain: Paul cared too much about this letter to hand it off.
He turns immediately to the Judaizers. Their motive was a good showing in the flesh. Get these Gentiles circumcised and they could hold them up as their converts, their cause, their accomplishment. But underneath all of it, Paul says, was the desire to avoid the persecution that came from standing with the cross of Christ alone. The cross was the offense. Circumcision was the escape hatch.
What is devastating about verse 13 is this: these men pressing circumcision on everyone else were not even keeping the law themselves. They weren't zealous law-keepers. They were performers. They wanted the trophy without the transformation. They wanted converts they could count, not disciples who were actually following Christ.
You can see this pattern today. There are people and movements so fixed on bringing others into their particular camp, their approved tradition, their circle of teachers, that a man who is clearly walking with Christ and bearing fruit gets viewed with suspicion simply because he is outside that circle. The question is never, is Christ being proclaimed? The question is always, but is he one of us? That is the flesh's boast. It turns people into trophies and the kingdom of God into a cause.
The Cross’s Claim
Against all of that, Paul sets one thing. "May it never be that I would boast, except in the cross of our Lord Jesus Christ."
The Greek phrase behind "may it never be" is mē génoito, the strongest expression of horror and repugnance in Paul's vocabulary. He uses it all through Romans, every time he confronts a conclusion so wrong it cannot stand. "Shall we sin that grace may abound? May it never be." "Has God cast away his people? May it never be." The thought of boasting in anything except the cross is not just wrong to him. It is repugnant.
It is worth noting that the King James translates this phrase as "God forbid," which is a strong negative, but the Greek does not have the word God. It is Paul's own gut-level rejection. The LSB renders it more precisely, giving you what Paul actually wrote: a personal vow, a statement of horror at the very idea.
When Paul says he glories in the cross, he doesn't mean a symbol on a wall. He means the propitiatory death of the Redeemer. The place where the wrath of God that was owed to us was absorbed by the Son of God. Pardon was there. Peace was there. Victory over sin was there. That is the only thing Paul will boast in.
Then he says the world has been crucified to him through that cross, and he to the world. A double death. A man who has been executed has no social standing to protect, no approval to chase, no crowd whose opinion still has leverage over him. That is what the cross did to Paul's relationship with the world. Its verdict on him no longer matters. And his old identity, his old grounds for boasting, are just as dead to the world as he is to them. That is not something Paul achieved by trying harder. The cross produced it in him.
The Only Thing That Counts
Verse 15 gives the theological reason behind Paul's declaration. "For neither is circumcision anything, nor uncircumcision, but a new creation."
Someone might ask: if circumcision is nothing, why has Paul spent six chapters fighting it? The answer is that circumcision in itself was never the real problem. The problem was that the Judaizers had elevated it to a means of justification. Any time anything gets lifted to that position, it has to be opposed. Not because the thing itself is wicked, but because nothing can hold that place except Christ and his cross.
What does count? A new creation. Paul says it as plainly as it can be said.
The Bible doesn't say we were sick and needed help. Dead. Dead in transgressions and sins. A dead man doesn't reach up and improve his own condition. God made us alive. God is the hero of that passage from the first verse to the last. There is nothing left to boast about. The new creation is not something we produced. It is something God did in us. That is exactly why circumcision counts for nothing. What you did or did not do to your flesh has no bearing on whether God raised you from the dead.
Peace and Mercy
Paul closes with a blessing on everyone who walks in step with this rule: boast only in the cross, count external marks as nothing, and recognize that the only thing that matters is whether God has made you a new creation.
To those who walk that way, he pronounces peace and mercy. Peace is our standing before God, purchased at the cross and belonging to everyone who has run there for refuge. Romans 5:1 says it plainly: "Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ." Mercy is the ongoing forgiveness of sins, not partial and not with a limit. As Titus 3:5 says, "He saved us, not by works which we did in righteousness, but according to His mercy, through the washing of regeneration and renewing by the Holy Spirit."
Paul adds "and upon the Israel of God," referring to Jewish believers in Christ, those who have seen that their circumcision counted for nothing without faith, and who have found their only boast where Paul found his. Romans 2:28–29 makes it clear: "He is not a Jew who is one outwardly, nor is circumcision that which is outward in the flesh. But he is a Jew who is one inwardly; and circumcision is that which is of the heart, by the Spirit, not by the letter." The Judaizers had it exactly backwards. The cross is the mark that matters.
Where Is Your Boast?
Paul has spent six chapters defending the gospel of grace against those who would add something to it. He gets to the end and puts the whole thing in one sentence. May it never be that I would boast, except in the cross.
The Judaizers boasted in what they could point to. Paul calls all of it flesh. It belongs to a world that has been crucified. What he calls us to is not just a different list of things to point to. It is a different relationship with boasting altogether. There is one ground. The cross. A man who has truly seen it doesn't need anything else.
This blessing is yours if you are walking in step with this rule. That means you are not looking to your baptism certificate or your church roll to give you peace. You are looking to Christ. The mercy you are resting on is not mercy you earned. It is the mercy of God poured out at Calvary. If that is where you are standing, peace and mercy are not distant hopes. They are your present possession.
Pay attention this week to what you find yourself boasting in. When you catch something, name it. Call it flesh. And take it to the cross. Ask yourself whether it belongs to the world that has been crucified. If it does, let it die.
The cross is a sufficient boast. Glory in Jesus. Let everything else go.