John 9:25 Meaning: The One Thing You Can Count
He therefore answered, “I don’t know if he is a sinner. One thing I do know: that though I was blind, now I see.”
He answered and said, Whether he be a sinner or no, I know not: one thing I know, that, whereas I was blind, now I see.
He therefore answered, Whether he is a sinner, I know not: one thing I know, that, whereas I was blind, now I see.
he answered, therefore, and said, `If he be a sinner--I have not known, one thing I have known, that, being blind, now I see.'
He answered therefore, If he is sinful I know not. One thing I know, that, being blind [before], now I see.
Meaning in one sentence
The healed blind man admits he cannot answer every charge, but holds to what he knows for sure: I was blind, now I see.
Context
John 9 tells the story of a man born blind. Jesus heals him on the Sabbath, which sets off a chain reaction. The Pharisees interrogate the man, then his parents, then the man again. His parents dodge the questions because they fear being thrown out of the synagogue. So the Pharisees turn back to the man and demand he confess that Jesus is a sinner. That is where verse 25 lands, the man stands alone before leaders who have already decided the answer they want. He refuses to join their verdict, but he does not mount a defence either. He simply states what he knows from his own skin.
Key Words
Three Greek words anchor this verse. The first is ἁμαρτωλός (hamartōlos), “a sinner.” The Pharisees had thrown the label at Jesus, and the man does not take the bait. He says he does not know (οἶδα, oida) if Jesus falls in that category. Oida means a deep, inward knowing, the kind that comes from experience. He will not pretend to a certainty he does not have.
What he does know is his own story. He was τυφλός (tuphlos), blind, shut off from light. Now he says βλέπω (blepō), “I see,” meaning he uses his eyes, actively. Between those two states sits a new reality he cannot explain away. And he calls it ἕν (hen), “one thing”, singular, focused, enough. He does not need a dozen arguments. One solid fact stands.
How Christians Read This Verse
Christians across traditions have heard this verse differently. Some, like John Calvin, think the man spoke with irony, pretending ignorance to poke at the Pharisees‘ pride. Others, like Matthew Henry, see a simple refusal to go beyond what he knows: he will not judge Jesus’ character, but he will not deny his healing. Gill and Barnes lean toward the man’s confidence that Jesus is no sinner, but he sets that opinion aside because the real point is the miracle itself. All agree on the main thing: the healed man testifies to a change he cannot unsay. That testimony carries weight no matter how you read the tone.
A common misunderstanding
Some readers hear “I don’t know if he is a sinner” and think the man was genuinely unsure about Jesus’s character, perhaps even suspected sin. In fact, he had already called Jesus a prophet (verse 17) and moments later will argue that God does not hear sinners (verse 31). His “I don’t know” is a tactical sidestep. He refuses to let them force his verdict, so he holds his ground on the one thing they cannot refute.
Living This Out
This week you may face questions you cannot answer. A coworker challenges the resurrection. A friend wonders why God allows suffering. You might feel pressure to have a perfect response. The man born blind shows another way: you do not have to solve every dispute. You can say what God has done for you. That might be a moment of clarity in prayer, a verse that held you steady, a time you felt His presence in grief. Your story is not an argument; it is a testimony. Hold it without shame. It cost you something to receive it, and no one can take it away.
Main takeaway: When you cannot settle the questions others raise, you can still speak with confidence about what God has done in your own life.
For Families
For ages 5, 8
The blind man could not answer all the grown-ups‘ questions. But he said one thing: “I was blind, and now I see.” You can always tell what Jesus has done for you.
For ages 9, 12
The Pharisees tried to trap the man who used to be blind. They wanted him to say Jesus was bad. But he just told them what happened: he could see. When people ask you hard questions about God, you do not have to have all the answers. You can still say what you know is true, that Jesus loves you and has changed your life.
Questions People Ask
Did the healed man doubt whether Jesus was a sinner?
Not really. Earlier he called Jesus a prophet (John 9:17), and later he argues that God does not listen to sinners (verse 31). His 'I don't know' is a way of refusing to take their bait. He will not pronounce on Jesus's character, but he does not think he is a sinner.
Why did the Pharisees keep questioning this man?
They were determined to discredit Jesus by any means. The healing happened on the Sabbath, which they saw as breaking the law. They hoped the man would either deny the miracle or condemn Jesus, but his simple testimony frustrated them.
What does 'one thing I know' mean in the original Greek?
The Greek word for 'one' (hen) is neuter singular, meaning 'one thing' as a single item. The verb 'I know' (oida) implies knowledge from personal observation. So the man is saying, 'Out of everything I could know or not know, this one fact I hold with certainty.'
Is this verse saying personal experience is more important than correct doctrine?
Not exactly. The man already held correct doctrine about Jesus (calling him a prophet). But in that moment, his experience was the evidence the Pharisees could not explain away. Both doctrine and testimony matter, but testimony is often what reaches people who reject arguments.
For pastors & researchers
Greek interlinear, 8 commentaries & word study