Matthew 18:15-17: How to Correct a Fellow Christian
Short answer: Jesus gives a four-step process in Matthew 18:15-17. First, go to the person alone and show him his fault. If he listens, the relationship is restored. If he refuses, return with one or two witnesses so the matter is established by evidence. If he still refuses, bring it before the assembly, and if he rejects even that, treat him as an outsider. Every step aims at gaining back a brother, not winning an argument. Correction is a rescue mission, not a punishment. Galatians 6:1-2 states that restoration must be done in a spirit of gentleness, with each corrector watching himself so he also is not tempted.
Why private correction comes first in Matthew 18:15
Jesus begins with the smallest possible audience. Matthew 18:15 says, "If your brother sins against you, go, show him his fault between you and him alone. If he listens to you, you have gained back your brother." The word translated gained is the language of winning back something lost. The private meeting protects the offender from needless shame and protects the relationship from becoming a public spectacle.
This first step requires real courage. It is far easier to discuss the offense with others than to face the person directly. Jesus forbids that detour. The offended party is the one who must go. The command does not say wait until you feel ready, or wait until he apologises first. It says go.
Notice also the goal: gaining back a brother. If your aim in the private conversation is to vent, to prove yourself right, or to collect an apology, you have already departed from the text. The purpose is restoration of a person, and the method is a direct, honest, private conversation.
One or two witnesses: the second step and its purpose
If the private conversation fails, Matthew 18:16 steps up the process. The text directs the offended believer to take one or two others along, so that the matter may be confirmed by the testimony of witnesses. This is not an ambush or an intervention designed to overwhelm the person. The witnesses are there to establish facts and to add their voice to the appeal.
This step also protects both parties. A single accuser can be mistaken, exaggerate, or misread a situation. Two or three people hearing the same account brings clarity. If the accusation is false, the witnesses will see that. If the sin is real, the offender now hears the same appeal from multiple voices.
Those who go along carry a serious responsibility. They are not there to take sides automatically. They are called to weigh the matter honestly and to speak with gentleness, keeping the same restoration goal that governed step one.
Tell it to the assembly: when the church must hear
The third step is public within the believing community. If the offender refuses to listen to the witnesses, the matter goes before the church. This is not gossip; it is the orderly escalation Jesus himself commanded. The assembly now shares the burden of the appeal, and the offender is confronted by the body he claims to belong to.
This step assumes a functioning local church with people who know both parties and can act wisely. It requires leadership willing to hear all sides rather than rush to judgment. Church discipline carried out carelessly has done real damage, and Jesus never authorises that. But the fear of doing it badly does not erase the command to do it rightly.
The purpose remains the same. The wider body speaks so that the wandering brother may hear, repent, and return. If he does, the matter ends there. The church does not owe anyone a public humiliation tour after genuine repentance.
Treat him as a Gentile and tax collector: the final step
If the offender refuses even the church, Jesus says to treat him as a Gentile and a tax collector. In the culture of that day, this meant removing him from the circle of intimate covenant fellowship. It is a serious step, not a trivial one. It declares that the person's continuing posture is incompatible with belonging to the community.
Yet even here the goal is not revenge. When Jesus himself treated tax collectors and Gentiles, he ate with them and called them to repentance. So this final step places the person outside the fellowship in hope that he will come to his senses and return. The door is closed to unrepentant sin, not bolted against a repentant sinner.
This step is rare and should be. Many conflicts never reach it because faithful believers keep going back to step one with honesty and humility.
Galatians 6:1 and the spirit of gentleness
Matthew 18 tells us the steps. Galatians 6:1-2 tells us the manner. The text reads, "Brothers, even if a man is caught in some fault, you who are spiritual must restore such a one in a spirit of gentleness; looking to yourself so that you also aren't tempted." The word restore is the picture of a surgeon setting a broken bone, or of mending a torn net. It is repair work, not demolition.
Two guards keep the process from turning cruel. First, gentleness. The corrector speaks with the awareness that he could commit the same sin. Second, self-watchfulness. The command to look to yourself assumes that pride, anger, and self-righteousness are real dangers in the one doing the correcting.
Anyone who approaches correction without these guards is not obeying Galatians 6, no matter how accurately he quotes Matthew 18. The steps and the spirit travel together.
What about public sin and false teaching?
Matthew 18 addresses personal offenses between believers, but the New Testament also deals with sin that is already public or doctrinal. 1 Corinthians 5:9-13 speaks of a man whose sin was known throughout the assembly and directs the church to remove him from their company. Paul makes clear that his instruction concerns those inside the church, not outsiders.
Titus 3:10-11 gives a similar pattern for a divisive person: warn him twice, then have nothing more to do with him. And 2 Timothy 3:16-17 reminds us that all Scripture is profitable for reproof and correction, so doctrine itself is fair ground for correction when handled from the text.
The common thread is honesty about serious sin, and a consistent aim at repentance. Public sin that the church already knows about is not a private matter, and pretending otherwise is not love.
Restoring the wandering brother: James 5 and the outcome
James 5:19-20 frames the whole project with its true motive. The passage says that if anyone among you wanders from the truth and another turns him back, that act saves a soul from death. Correction, at its best, is an act of rescue. This is why it cannot be done casually or angrily.
The restoration theme runs through every step of Matthew 18. Jesus does not describe a courtroom. He describes a search for a lost sheep, which is exactly the image he uses immediately before this passage. The Father does not want one of these little ones to perish.
That means a faithful corrector celebrates repentance rather than resenting it. When the brother listens, when the witnesses are heard, when the church's appeal is answered with a changed heart, the matter is finished. There is no ledger kept, no lingering suspicion, no subtle punishment after forgiveness. You have gained your brother back.
When faithful Christians differ on these steps
Honest believers read Matthew 18 differently at some points. Some think the passage applies only to personal offenses, while others extend its pattern to any sin between believers. Some churches formalise the third step through appointed leaders; others involve the whole gathered assembly. Some see the final step as a formal act of excommunication; others see it as a relational distance that is less official.
These differences matter, but they should not become a new occasion for division. What is not disputed is the direction of the process: private before public, gentle rather than harsh, aimed at restoration rather than victory. A corrector who skips straight to public accusation has disobeyed the text no matter which church tradition he belongs to.
Where believers disagree, they should still treat each other with the same patience the passage requires. The procedure exists to heal relationships, not to create new casualties along the way.
Biblical fidelity check
Matthew 18:15-17 establishes a specific sequence for addressing sin between believers: private confrontation, then witnesses, then the assembly, then removal from fellowship if there is no repentance. It does not establish a license for personal vendettas, public shaming, or a procedure for punishing people who simply annoy us. The text assumes a real offense and a real hope of restoration.
A common misreading turns this passage into a weapon. Someone rehearses the steps in order to justify a harsh confrontation, then claims Jesus commanded it. But the same Lord who gave the steps also said, through Galatians 6:1, that restoration must be done in a spirit of gentleness. The method and the manner come from the same Bible, and neither cancels the other.
Another misreading treats the passage as optional, as if avoiding conflict were the greater virtue. Jesus did not say that if your brother sins, quietly pray and hope it resolves. He said go. Silence in the face of known sin between believers is not kindness; it leaves the wound untended.
Other passages that speak to Matthew 18:15-17
Because correction touches church life, leadership, and unity, several related studies help fill in the picture. The qualifications for those who lead in correction are set out in Titus 1 and 1 Timothy 3 elder qualifications compared: A Biblical Leadership Guide. The call for a united, non-fractious church is treated in What Does 1 Corinthians 1:10 Mean? Context, Theology, and Application. The foundation of that unity, God's faithful calling of his people, is examined in What Does 1 Corinthians 1:9 Mean? Context, Theology, and Application. And a broader survey of the opening chapter of that letter, including its themes of calling and humility, appears in 1 Corinthians 1: Called, United, and Boasting in the Lord.
Frequently asked questions
Does Matthew 18:15 apply only when someone sins directly against me?
The verse is addressed to the person sinned against: if your brother sins against you, go. Some believers limit the passage strictly to personal offenses. Others see the same pattern extending to sins they witness, since the principles of privacy, witnesses, and restoration apply broadly. Where the Bible does not spell out the boundary, it is wise to ask what will most likely lead the person to repentance. Capricious reporting of others' sins usually does not. Personal experience of the offense does give the clearest warrant to begin the process.
Should I involve church leaders before the final step?
Many churches wisely involve mature leaders earlier, especially when the offense is serious or the parties are in different positions of power. Jesus' sequence lists the assembly as the third step, but nothing forbids seeking counsel sooner. What the text guards against is bypassing the personal conversation entirely or turning to leaders as a way of avoiding the person. A pastor can help two believers think clearly, pray, and prepare for the conversation. If he is asked to referee from a distance without anyone having gone to the offender, the process has been inverted.
What does it mean to treat someone as a Gentile and a tax collector?
In its setting, it meant no longer treating the person as a member of the covenant community, since he has refused the community's appeal. It is a withdrawal of fellowship, not of basic kindness. Jesus himself showed mercy to Gentiles and tax collectors, so this final step is meant to move the person toward repentance, not to justify contempt. It should be done with sorrow, not satisfaction. And if the person later repents, the church should welcome him back fully, because the entire process exists to gain a brother rather than to lose one.
