Matthew 23:15 Explained: What Is a Son of Hell?
Short answer: In Matthew 23:15, Jesus pronounces a woe on scribes and Pharisees whose missionary zeal produces converts worse than themselves. He says, as Matthew 23:15 says, "Woe to you, scribes and Pharisees, hypocrites! For you travel around by sea and land to make one proselyte; and when he becomes one, you make him twice as much a son of Gehenna as yourselves." The phrase rendered son of Gehenna means a person destined for destruction, a child of the place of final judgment. Jesus is not condemning the effort to reach people. He is condemning a kind of outreach that transmits hypocrisy, human tradition, and self-righteousness instead of true knowledge of God, so that the convert inherits the teacher's error doubled.
What Jesus Actually Says in Matthew 23:15
Matthew 23 records the sharpest denunciation in the Gospels. Jesus is speaking in the temple courts during the final week before his crucifixion, and he addresses the religious leaders who held the greatest influence over Israel. Seven times he pronounces woe, and the fifteenth verse sits among them. The word woe is not a curse in the sense of a magical hex. It is a prophetic lament and a declaration of coming judgment, the same tone the prophets used when they announced disaster on unfaithful Israel. Jesus is not venting irritation. He is announcing the verdict of God on a religious system that had inverted its purpose.
The charge is specific. These men travel by sea and land to make a single convert. That detail matters because it acknowledges real effort. First-century Judaism did attract Gentiles, and the Pharisees were known for serious dedication to their mission as they understood it. They were not lazy or indifferent. They were willing to cross oceans. Jesus does not mock their stamina or their sacrifice. He says the end product is corrupt. The problem is not the labour but the substance. They are manufacturing adherents to a distorted faith and calling it success.
The phrase son of Gehenna is the sting of the verse. Gehenna refers to the valley of Hinnom outside Jerusalem, a place associated in Jewish thought with judgment and fire. To call someone a son of Gehenna is to say they belong to it, that destruction is their inheritance and destination. The convert becomes this because of the teaching received. Jesus says twice as much, meaning the disciple outdoes the teacher in the very error he was taught. That is a devastating picture of religious influence gone wrong, and it should make every teacher, parent, and evangelist pause.
Notice the word hypocrites at the start. Jesus ties the whole failure to pretense. These leaders presented themselves as guardians of truth while their own hearts were unaddressed. Their converts did not become righteous; they became skilled at the same performance. The verse is therefore not a warning against evangelism. It is a warning against evangelism that has lost its substance, where the message is human tradition dressed as divine revelation and the result is a person more committed to the facade than the one who taught them.
What Son of Gehenna Means in the Gospels
The expression is not unique to this verse in spirit. In Matthew 5:22, Jesus warns, "Whoever says, ‘You fool!’ will be in danger of the fire of Gehenna." There the same term appears as the ultimate danger, the destination of the unrepentant and the hateful. Gehenna is not merely a metaphor for embarrassment or social shame. In the Gospels it consistently names the place and state of final judgment under God. So when Jesus calls a convert a son of Gehenna, he is using the strongest language available for spiritual ruin.
To be a son of something in Semitic idiom is to belong to it, to share its nature and destiny. A son of Abraham belongs to the covenant people. A son of peace shares in peace. A son of Gehenna shares in destruction. The phrase therefore describes identity and destiny together, not merely behaviour. Jesus is saying that this convert has been formed into someone whose whole orientation leads to judgment. That is far more serious than saying the person holds some incorrect opinions. It is a statement about what he has become.
Some readers hear a contradiction with the idea that God desires all to be saved. It is not a contradiction. Jesus is describing a real outcome, not a decree that removes human responsibility. He weeps over Jerusalem in the same Gospel and longs to gather her children. The woe is real, and so is the grief. The warning exists precisely because the outcome is avoidable, and the point of naming it so bluntly is to shock the hearer into repentance. A milder word would not have reached them, and it may not reach us.
It is also worth noting that Jesus does not say the convert became a son of Gehenna by joining the wrong group. He says the teacher made him that. There is a real culpability on the part of those who shape others in error. James warns that teachers will be judged more strictly, and this verse shows why. Influence over souls is not a neutral thing. It carries weight in eternity, and Christ takes it seriously enough to pronounce woe.
The Mission Was Real, the Message Was Not
It would be a mistake to read this verse as a rejection of missionary work as such. Jesus himself sends his disciples to all nations at the end of Matthew's Gospel. The problem in Matthew 23:15 is not the crossing of seas but the content being carried. These men were not travelling to proclaim the God of Israel as he had revealed himself; they were travelling to bind people to a system of added rules, external purity codes, and traditions that had grown to obscure the very law they claimed to honour.
When Jesus elsewhere rebukes the tradition that nullifies the commandment of God, he is describing the same disease. A convert brought into that system learned to measure holiness by washings, tithes of herbs, and the honour of teachers, while the weightier matters of justice, mercy, and faithfulness were neglected. The instruction was rigorous and the outcome was hollow. It produced people who could argue fine points of law but could not recognise God standing in front of them.
This is a permanent danger for any religious movement, including our own. Whenever we confuse our distinctives with the gospel, we run the risk of making converts to us rather than to Christ. Whenever we transmit a culture, a political posture, or a set of preferences with the same authority as Scripture, we are building the same structure the Pharisees built. The test is simple and uncomfortable: what does the person we disciple actually look like after a few years, and does that likeness resemble Jesus or resemble us?
Paul faced the same problem in Galatia, where teachers insisted that Gentile converts adopt Jewish ceremonial practices to be truly saved. His letter is a long argument that such a message is not a supplement to the gospel but a different gospel. The principle stands. Energy spent on the wrong message is not neutral. It does not merely fail to help. It forms people in error, and error about the way of salvation is the most serious error of all.
Twice as Much: How Disciples Outdo Their Teachers
The phrase twice as much is arresting. How does a convert become worse than the one who taught him? Several things happen. First, a new convert often embraces a system with the zeal of the newly convinced. He adopts every emphasis and every exaggeration with more intensity than the one who grew up inside it and had learned to be somewhat relaxed. Second, the teacher may privately be less confident than he appears, while the disciple takes the performance at face value and reproduces it without the caveats. The scaffolding is copied and the house falls down.
Third, a convert who has staked his identity on a system will defend it more fiercely because his whole turn of life depends on it. To admit the system is wrong is to admit he was deceived, and that is a costly admission. So he doubles down. The teachers were already inside the tradition; the convert has made a decisive break with his past to enter it, which makes retreat feel like betraying his own history. This is a common pattern well beyond first-century Judaism.
We see it in every generation where a person is brought into a movement built around a personality, a prophecy, or a peculiar interpretation. The founding figure often holds the position with some nuance. The disciples, having no such history, hold it as absolute, and they become harsher than the founder ever was. Jesus names this dynamic and locates the guilt with the teachers who set it in motion. The warning is aimed at those who shape others, not only at those who are shaped.
There is a pastoral edge here. Many believers carry wounds from having been made into something they should never have been, taught to see God through a distorted lens. The good news is that Christ's woe falls on the makers of such converts, not on those who were made. A person can be unmade and remade by the truth. Confession, honest Scripture reading, and fellowship with a healthy church can undo the doubling. The verse is a warning, not a final sentence on anyone who repents.
Children of the Evil One and Children of the Kingdom
Jesus uses family language for spiritual origin. In John 8:44 he tells his opponents, "You are of your father, the devil, and you want to do the desires of your father." This is not name-calling. It is a diagnostic statement about whom a person resembles and obeys. In the parable of the weeds, Jesus explains that the darnel weeds are the children of the evil one while the good seed are the children of the Kingdom. Spiritual parentage is revealed by fruit, not by claim.
This background illuminates Matthew 23:15. A son of Gehenna is the counterpart of a son of the Kingdom. Both phrases describe formation and destiny. The tragedy of the verse is that a person who might have become a child of the Kingdom became a child of destruction because the missionary who reached him carried the wrong message. The category is not decided by ethnicity, birth, or religious label. It is decided by whose character you bear and whose will you do.
That should guard us against two errors. One is complacency, assuming that religious association guarantees standing. The Pharisees were the most religiously active people in their society, and Jesus addressed the harshest words in the Gospels to them. The other error is despair, assuming that a wrong start cannot be corrected. John writes that those who receive Christ are given the right to become children of God, and that is a present possibility for anyone, whatever they were made into before.
The verses around John 8 also show that this language is not about a fixed caste. Jesus speaks to people who can still hear and believe, and some in that very audience do. The door is open. What the verse in Matthew forbids is the complacent assumption that our efforts at outreach are automatically blessed because they are efforts. God looks at what is produced, and he is not impressed by mileage.
False Teachers and the Son of Destruction
The New Testament speaks elsewhere of a figure called the son of destruction, and the language is close enough to shed light. In 2 Thessalonians 2:3, Paul writes, "Let no one deceive you in any way. For it will not be, unless the rebellion comes first, and the man of sin is revealed, the son of destruction." This is a person characterized by destruction, set in opposition to God, and his end is destruction. The phrase functions as a label of destiny, exactly as son of Gehenna does.
Peter describes the wider pattern in 2 Peter 2:1, where false prophets arose among the people and false teachers will arise among believers, secretly bringing in destructive heresies. Note the word secretly. The danger is rarely announced. It comes in under the guise of loyalty to God, tradition, or community. The teachers in Matthew 23 would never have described themselves as enemies of God. They believed they were serving him. That is what makes the warning so sobering and so necessary.
The linking thread across these passages is this: those who teach shape those who learn, and false teaching produces people oriented toward destruction. It can happen inside the visible community of faith, not only outside it. Peter says these false teachers deny even the Master who bought them, which suggests people who once seemed to belong. The New Testament never treats this as a remote theoretical possibility. It treats it as a recurring danger requiring vigilance and clear doctrine.
The pastoral response is not suspicion of every teacher but discernment about what is actually being formed in us and in those we influence. A healthy ministry produces people who love Christ, know Scripture, bear the fruit of the Spirit, and can say with conviction that Jesus is Lord. A diseased ministry produces people who are sharper, harsher, more loyal to a system, and less like Jesus than when they began. The difference is not always obvious at first, but over time the fruit appears.
Application: Examine What We Are Making
This verse searches every one of us who has any influence. Parents, small group leaders, teachers, writers, and friends all shape others. The question is not whether we have influence but what our influence produces. If the people closest to us become more like Christ, more honest, more humble, more merciful, something is going right. If they become more like us in our worst traits, more combative, more impressed with our favourite ideas, more afraid of the wrong things, we should hear the woe and repent.
One practical step is to ensure that Scripture, not our own systems, is the substance of what we pass on. Paul told Timothy to entrust the message to faithful people who would teach others also. That message is the apostolic gospel, not our latest emphasis. When we teach, we should ask whether the person is being pointed to Jesus or to us, to the text or to our interpretation of the text, to faith and repentance or to a subculture. A convert to a subculture will not survive the tests of life; a convert to Christ will.
Another step is to keep the gospel central in our own lives. Hypocrisy grows when we demand of others what we do not pursue ourselves. The Pharisees failed precisely there. If we are not being changed by the truth we teach, we will transmit a shell without a kernel, and those who learn from us will inherit the shell. Repentance is the ongoing corrective. We cannot lead anyone further than we are willing to go ourselves.
Finally, be teachable. The remedy for a son of Gehenna is a son of the Kingdom, and that transition happens through the truth received in humility. If this passage exposes something in your history, take it to God. He is not surprised by it and he is not unwilling to remake what was misshapen. The warning is severe because the stakes are severe, but it is spoken by the same Lord who welcomes the weary and gives rest. Let it drive you to him, not away.
Biblical fidelity check
What this passage establishes: Jesus pronounced a genuine woe on religious teachers whose outreach produced converts formed in error, and he used the language of Gehenna to describe the seriousness of that outcome. It establishes that teaching has moral weight, that content matters, and that God holds teachers accountable for what they form in others. It does not establish that all Pharisees were insincere, that all missionary effort is suspect, or that a person's final destiny is fixed by the group they were raised in. The verse is a warning aimed at makers of disciples, and its purpose is repentance, not despair.
A common misreading takes the verse as a general attack on evangelism or as proof that seeking converts is inherently manipulative. That is not what the text says. Jesus commissioned his own disciples to make disciples of all nations, and the early church spread by deliberate proclamation. The fault named here is the message and the mismatch between teaching and life, not the travel or the effort. Another misreading treats son of Gehenna as a slur against Jewish people as a whole. But Jesus himself was Jewish, his first followers were Jewish, and he mourns over Jerusalem in the same Gospel. The woe falls on specific leaders for specific practice, and the remedy is the true knowledge of God, which is offered to everyone.
Other passages that speak to Matthew 23:15
If you want to trace this theme further, several studies help. The letters of John explore walking in the light and the reality of sin, which is the honest self-examination Jesus demands of teachers: What Does 1 John 1:1 Mean? Context, Theology, and Application. The next verses press the point that claiming sinlessness is self-deception: What Does 1 John 1:8 Mean? Context, Theology, and Application. The remedy is confessed and forgiven sin: 1 John 1:9 Meaning: Confession, Forgiveness, and Cleansing. And because the Pharisees loved the praise of people rather than God, the warning about misplaced love is directly relevant: What Does 1 John 2:15 Mean? Context, Theology, and Application.
Frequently asked questions
What does son of hell mean in Matthew 23:15?
The phrase translates son of Gehenna, using the name of the valley associated with judgment. In Semitic idiom, a son of something shares its nature and destiny. So a son of Gehenna is a person whose life and end are bound up with destruction. Jesus uses it to describe a convert who has been formed by false teaching into someone headed for judgment, and he says that person becomes twice as much a son of Gehenna as the teacher. It is the strongest language of spiritual ruin in the Gospels.
Was Jesus against evangelism and making converts?
No. The same Gospel ends with the risen Jesus sending his disciples to make disciples of all nations. The fault in Matthew 23:15 is the message and the life behind it, not the travel or the effort. The Pharisees were converting people to a system of human tradition and external performance while neglecting justice, mercy, and faithfulness. Jesus condemns outreach that transmits hypocrisy and error. He commands outreach that transmits the truth about himself and forms people who genuinely know and love God.
Can a person taught wrongly still be saved and corrected?
Yes, and Scripture presents that hope repeatedly. Being raised in or converted into an unhealthy system does not seal anyone's fate. The warnings of Jesus are meant to produce repentance, and the invitation to become a child of God is open to all who receive Christ. Honest reading of Scripture, confession of sin, and life in a healthy church can undo much of the damage. The woe falls on the teachers who formed the error; the door of mercy stands open for those who turn to the Lord.
