All sins can be forgiven.
Therefore, we must not take lightly
the opportunity to repent.
“Everyone who speaks a word against the Son of Man will be forgiven, but anyone who blasphemes against the Holy Spirit will not be forgiven” (Luke 12:10).
(1) As I read today’s passage, Luke 12:10, I first looked up and read the parallel passages: “Therefore I tell you, every sin and blasphemy will be forgiven people, but blasphemy against the Spirit will not be forgiven. Whoever speaks a word against the Son of Man will be forgiven, but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come” (Mt. 12:31–32); “Truly I tell you, people can be forgiven all their sins and every slander they utter, but whoever blasphemes against the Holy Spirit will never be forgiven; they are guilty of an eternal sin” (Mk. 3:28–29). After comparing these three passages, I would like to reflect on God’s Word by dividing it into two main points and receiving the lessons it teaches:
(a) First, Jesus says, “Everyone who speaks a word against the Son of Man will be forgiven” (Lk. 12:10a).
(i) As I meditate on these words of Jesus, my attention is first drawn to the phrase “will be forgiven.” In Greek, this is a single word: ““ἀφεθήσεται” (aphethēsetai).
· This Greek word is the future passive form of the verb aphiēmi, which means “to forgive” or “to release,” and it carries the meaning “will be forgiven.” Its specific meaning and theological background are as follows (Internet):
1. Meaning of the word and grammatical features
Etymology: It comes from aphiēmi, meaning “to send away,” “to let go,” or “to remit.” In the Bible, it is mainly used to refer to the forgiveness of sins—being released from responsibility for sin (e.g., “forgive us our sins” in the Lord’s Prayer).
Passive voice (Divine Passive): The passive voice here is what is called a “divine passive,” implying that God is the one who grants forgiveness. In other words, it means “will be forgiven by God.”
2. Contrasting meaning in context
In Luke 12:10, this word appears in both positive and negative forms, sharply contrasting two situations:
One who speaks against the Son of Man: “will be forgiven” (aphethēsetai) — This means that sins such as misunderstanding or temporarily rejecting the humanity of Jesus Christ can be forgiven by God through repentance.
One who blasphemes against the Holy Spirit: “will not be forgiven” (ouk aphethēsetai) — This warns that deliberately and persistently rejecting the work of the Holy Spirit and attributing it to evil cuts off even the opportunity for forgiveness.
3. Theological interpretation
Deliberate rejection: The reason blasphemy against the Holy Spirit cannot be forgiven is that the Holy Spirit is the one who convicts of sin and leads people to repentance. If a person rejects that very means, the necessary condition for forgiveness—repentance—cannot occur, and thus forgiveness (aphethēsetai) becomes impossible.
The example of Peter: Peter denied Jesus, the Son of Man, three times but was later forgiven. This is considered a representative example of receiving the grace of “will be forgiven” (aphethēsetai) for sinning against the Son of Man.
(ii) Next, as I meditated on these words of Jesus (Lk. 12:10a), my attention was drawn to the phrase “speaks a word against the Son of Man.” I compared this expression with the passages in Matthew and Mark: “every sin and blasphemy against people” (Mt. 12:31), and “all sins and every blasphemy people utter” (Mk. 3:28).
· In other words, while Luke 12:10 and Matthew 12:32 say, “whoever speaks a word against the Son of Man will be forgiven,” Matthew 12:31 first says, “every sin and blasphemy will be forgiven,” and Mark 3:28 says, “all sins and every blasphemy will be forgiven.” In short, Jesus is saying that all sins and blasphemies against people—even speaking against the Son of Man—can be forgiven.
- Artificial intelligence (internet sources) summarizes this in one sentence: “Except for the sin of blaspheming the Holy Spirit, every kind of sin and slander committed by humans—even speaking against the Son of Man (Jesus)—can be forgiven (aphiēmi) through repentance.” This declaration carries two important meanings:
1. The infinite scope of forgiveness: The statement that “all sins” and “all blasphemies” can be forgiven shows that God’s mercy is greater than any heinous crime or mistake committed by human beings.
a. The expression “the infinite scope of forgiveness” goes beyond simply “overlooking much”; it means that God’s power to forgive overwhelmingly surpasses human depravity. This can be explained in three specific aspects:
1. It transcends both the ‘kind’ and ‘amount’ of sin
In Matthew 12:31, the phrase “all sins and all blasphemies” uses the Greek word “πᾶσα” (pasa), meaning “the whole without exception.”
It includes not only moral sins (such as theft or adultery) but also blasphemy—direct insults against God.
By human standards, even extremely wicked sins or repeated failures that seem unforgivable can still fall within the reach of God’s mercy (the arms of forgiveness).
2. It even encompasses the sin of speaking against the Son of Man
For the Jews of that time, blaspheming the Messiah was considered the gravest form of blasphemy. Yet Jesus said that even speaking against the Son of Man can be forgiven.
This means that even the ignorance of failing to recognize His divinity when He came in human form is embraced. In other words, even acts of opposition committed out of misunderstanding God can be forgiven when there is repentance.
3. The basis of forgiveness lies not in human action but in God’s character
The word mentioned earlier, “aphethēsetai” (“will be forgiven”), is not something humans achieve through effort, but a grace granted unilaterally by God.
No matter how great the sin, it is like being thrown into the ocean of God’s mercy and disappearing.
The only condition is repentance. As long as one does not persistently reject the work of the Holy Spirit (blasphemy against the Spirit), any person—no matter their condition—can receive the grace of forgiveness.
Ultimately, this message gives a powerful assurance: “No matter how scarlet your sins are, if you turn back, God’s system of forgiveness will be at work.”
2. The contrast between the Son of Man and the Holy Spirit: At that time, the Jews did not recognize Jesus (the Son of Man) who came in the flesh and spoke against Him out of ignorance, so the opportunity for forgiveness remained open. However, to witness the clear work of the Holy Spirit (such as casting out demons and healing) and still maliciously reject it is like kicking away the very path to salvation—thus serving as a solemn warning that there is no way to be forgiven.
In the end, this message is also a powerful invitation of the gospel: “If one responds to the call of the Holy Spirit and repents, any sinner can enter into the grace of forgiveness [“ἀφεθήσεται” (aphethēsetai)] (Internet).
(b) Second and final, Jesus says, “but the one who blasphemes against the Holy Spirit will not be forgiven” (Lk. 12:10b).
(i) As I meditated on these words of Jesus, my attention was drawn to the Greek word for “blasphemes,” ““βλασφημήσαντι” (blasphēmēsanti). This word is the aorist active participle form of the verb “βλασφημέω” (blasphēmeō), which means “to blaspheme” or “to slander.” Its meaning can be explained more specifically as follows (Internet):
1. Basic meaning of the word
Etymology: It is a compound of “βλάπτω” (blaptō) (“to harm” or “evil”) and “φήμη” (phēmē) (“speech”).
Core meaning: It goes beyond merely saying something offensive; it refers to intentionally damaging someone’s honor and degrading or insulting what is sacred.
2. Grammatical features and nuance
Participial form: In this passage, it refers to “the one who blasphemes the Holy Spirit,” identifying the person who commits the act.
Aorist tense: This tense does not simply indicate a past action, but suggests a decisive attitude—knowingly seeing the evident work of the Holy Spirit and yet choosing to reject and blaspheme it.
3. Difference from “speaking against the Son of Man”
Luke 12:10 contrasts two kinds of “speech”:
Speaking against the Son of Man [“εἴπῃ λόγον” (eipē logon)]: This expression suggests “uttering a word,” often with the nuance of criticizing Jesus out of ignorance or mistake.
Blaspheming the Holy Spirit [“βλασφημήσαντι” (blasphēmēsanti)]: This refers to a deliberate and malicious rejection—like the Pharisees who, even though they clearly saw the work of the Holy Spirit, slandered it as the work of Beelzebul, the prince of demons.
4. Why is “blasphemy” the problem?
The Holy Spirit is the one who convicts us of sin and leads us back to God. If someone slanders (“βλασφημέω”) and cuts off that very channel by calling it evil, then even if God desires to grant forgiveness (“ἀφίημι”), the person has, in effect, broken the “receiver” on their side that would accept it. Thus, the result is that “they will not be forgiven.”
· The word “βλασφημέω” (“to blaspheme”) is used very seriously throughout the Bible when referring to actions or speech that violate God’s holiness. Consider a few key examples that show the weight of this term (Internet):
1. The Ten Commandments and Old Testament background (Third Commandment)
In the Greek Old Testament (LXX), this concept appears in the commandment: “You shall not take the name of the Lord your God in vain.”
It goes beyond mere profanity to include any attempt to diminish God’s character or authority.
Leviticus 24:16 even prescribes death for blaspheming the name of the Lord, showing how grave the sin was.
2. Paul before his conversion (1 Tim. 1:13)
The apostle Paul uses this word when recalling his past: “I was formerly a blasphemer, a persecutor, and a violent man…”
Paul acknowledges that he spoke against and opposed the Son of Man out of ignorance, yet received God’s mercy and forgiveness [“ἀφίημι” (aphiēmi)]. This serves as a real example of “whoever speaks against the Son of Man will be forgiven” in Luke 12:10.
3. Accusations of blasphemy by Jewish leaders
When Jesus said, “Your sins are forgiven,” or claimed to be the Son of God, the Pharisees used this word against Him: “This man is blaspheming (βλασφημέω)” (Mt. 9:3).
They believed He was infringing upon God’s exclusive authority to forgive sins. Ironically, the ones truly committing blasphemy were those rejecting the work of the Holy Spirit.
4. Characteristics of the last days (2 Tim. 3:2)
Paul warns that in the last days people will be lovers of themselves, lovers of money, and blasphemers (βλασφημέω).
Here, blasphemy includes not only slander against others but also an attitude of rejection toward truth and God.
In conclusion: In the Bible, this word refers to a proud kind of speech that places oneself above God or declares God’s goodness to be evil. Therefore, in Luke 12:10, to see the saving work of the Holy Spirit and still say, “That is the work of demons,” is the most serious form of “βλασφημέω” (blasphemy).
- The following are three specific reasons why calling the work of the Holy Spirit “the work of demons” becomes a fatal blasphemy (βλασφημέω) that “cannot be forgiven” (Internet):
1. Because it defines the “channel of truth” as evil
The Holy Spirit is the “only channel of salvation” who makes us aware of sin, reveals who Jesus is, and leads us to repentance.
If someone sees the work of the Holy Spirit and says, “That is the work of demons (Satan),” they are like a patient who calls the medicine meant to save them “poison” and refuses it.
A patient who believes medicine is poison will never take it, and thus ends up rejecting the opportunity for healing (forgiveness) by their own choice.
2. Because it is not “ignorance” but “intentional rejection”
Jesus said that “speaking against the Son of Man” can be forgiven. This is because, when Jesus appeared in human form, people could misunderstand Him as merely a carpenter’s son and criticize Him out of ignorance.
In contrast, the power of the Holy Spirit (healing the sick, casting out demons, etc.) is a clear work of goodness that only God can perform.
To see such obvious light and yet deliberately call it “darkness” is not a mistake born of ignorance, but a willful rebellion that attacks the very character of God as evil.
3. Because it completely blocks the possibility of repentance
The prerequisite for forgiveness [“ἀφίημι” (aphiēmi)] is always repentance. And repentance is not achieved by human effort alone, but becomes possible when the Holy Spirit works in our hearts.
A person who blasphemes the Holy Spirit dismisses even that inner prompting as “Satan’s temptation” or something evil.
It is like locking the door of the heart from the inside and throwing away the key. Even if God desires to forgive, that person cannot develop a heart of repentance, and thus remains in a state of unforgiveness forever.
In summary: The reason blasphemy against the Holy Spirit is so serious is not because God lacks the power to forgive, but because a person cuts off the only lifeline—repentance—by calling the Holy Spirit evil.
(2) In Luke 12:10, the decisive difference Jesus makes between “speaking against the Son of Man” and “blaspheming the Holy Spirit” lies not so much in the object of the sin, but in the condition of the heart and the possibility of repentance. There are three key differences (Internet):
1. “Misunderstanding due to ignorance” vs. “intentional rejection”
Speaking against the Son of Man (Jesus): At that time, people saw Jesus merely as a carpenter’s son or a man from Nazareth. Because He came in human weakness, failing to recognize His divinity and criticizing Him could be a mistake born of ignorance. This remains within the realm where one can later repent and receive forgiveness [“ἀφίημι” (aphiēmi)].
Blaspheming the Holy Spirit: The work of the Holy Spirit is clear evidence of God’s living presence. To see it and yet claim, “It is done by Beelzebul, the prince of demons,” is a stubborn, deliberate act of calling what is known to be God’s work evil.
2. “External slander” vs. “internal severance”
Speaking against the Son of Man: This is closer to an outward mistake in words [“λόγον” (logon)] or actions. Like the apostle Paul before his conversion, one may outwardly oppose, yet still have an inner conscience that can respond to the Holy Spirit.
Blaspheming the Holy Spirit: The Holy Spirit convicts the human heart of sin. If one denies and blasphemes the Spirit Himself, they cut off the inner voice that calls for repentance. This is an internal severance that destroys the only channel through which one can turn back.
3. “Opportunity for forgiveness” vs. “impossibility of forgiveness”
Speaking against the Son of Man: Peter denied Jesus three times, yet later repented with tears through the work of the Holy Spirit and was forgiven. Thus, sins against the Son of Man still leave room for repentance.
Blaspheming the Holy Spirit: It is not that the sin is too great for God to forgive, but that the person rejects the very condition for forgiveness—repentance. Since God does not force forgiveness on one who refuses to repent, it results in an “eternal sin” that cannot be forgiven.
In short: Speaking against the Son of Man is like rejecting a remedy because one does not recognize it, whereas blaspheming the Holy Spirit is like calling the remedy “poison,” throwing it away, and declaring that one will never be healed (Internet).
(a) The message of Luke 12:10 may sound like a fearful warning, but at the same time it contains deep comfort and hope. It gives us two key messages today (Internet):
1. A powerful “comfort” for believers: “All sins can be forgiven”
The first part of the verse (“whoever speaks against the Son of Man will be forgiven”) and the parallel passage (“all sins and blasphemies will be forgiven”) proclaim an extraordinary gospel.
Freedom from past mistakes: Even the sins we committed in ignorance, including speaking against or rejecting Jesus, can be completely forgiven (ἀφεθήσεται) if we repent.
The example of the apostle Paul: He was once a “blasphemer” who persecuted believers, yet when he repented of opposing the Son of Man, he became an apostle. This breaks the fear that “my sins are too great to be forgiven.”
2. A serious “warning” for believers: “Do not take the opportunity for repentance lightly”
The warning that blasphemy against the Holy Spirit will not be forgiven teaches us to value the “means of repentance” we have.
A troubled conscience is a sign of grace: If someone sins and worries, “Have committed the unforgivable sin?” that very concern shows they have not.
Those who truly blaspheme the Holy Spirit have a seared conscience (1 Tim. 4:2), feel no conviction, and have no desire to repent at all.
The danger of persistent rejection: When the Holy Spirit whispers in our hearts, “That is sin—turn back,” we must not repeatedly ignore it or dismiss it as evil or insignificant, hardening our hearts.
In summary, this message is not meant to frighten us, but to earnestly invite us: “When the Holy Spirit knocks on your heart, do not resist His hand, but respond and come into the ocean of forgiveness.” The Holy Spirit has come to help us receive forgiveness.