Catholic Commentary
Judgment, True and False Blindness
39Jesus said, “I came into this world for judgment, that those who don’t see may see; and that those who see may become blind.”40Those of the Pharisees who were with him heard these things, and said to him, “Are we also blind?”41Jesus said to them, “If you were blind, you would have no sin; but now you say, ‘We see.’ Therefore your sin remains.
Jesus's judgment isn't condemnation—it's the exposure of those who refuse to admit they're blind, and their refusal is what makes them guilty.
As Jesus concludes the healing of the man born blind, He delivers a paradoxical verdict: His coming into the world both opens the eyes of the humble and blinds those who presume to see. When the Pharisees ask indignantly whether they too are blind, Jesus exposes the deeper tragedy — not ignorance, but the refusal to acknowledge ignorance. Their sin is not that they cannot see, but that they claim they already do.
Verse 39 — "I came into this world for judgment" This verse has puzzled readers who remember Jesus declaring earlier in John's Gospel that He "did not come to judge the world but to save it" (Jn 3:17; 12:47). The tension is deliberate and must be read carefully. Jesus is not contradicting Himself; rather, He is describing the effect of His presence rather than its primary purpose. The Greek word used here (krima) carries the sense of a sifting or discrimination — a separation that His very presence provokes. Light does not come to condemn, but darkness is only visible once light arrives. The two parallel clauses — "that those who don't see may see; and that those who see may become blind" — are constructed as a chiasm of irony. The "those who don't see" are the spiritually poor, the humble, those who know their need: the formerly blind beggar is the immediate, living illustration. The "those who see" are those who trust their own moral and intellectual perception so completely that the Light becomes an offense rather than a gift. The statement thus closes the entire episode of chapter 9 with theological precision: the miracle that gave physical sight also performs a spiritual triage on all who witness it.
Verse 40 — "Are we also blind?" The Pharisees' question is drenched in sarcasm. The Greek construction (mē and the indicative) anticipates a negative answer — they expect Jesus to say "No, of course not." They are, in their own estimation, Israel's teachers, the qualified interpreters of Moses. The irony the Evangelist intends for the reader is devastating: by asking the question at all, they implicate themselves in the very drama being described. They were present for the interrogations of the healed man and his parents; they expelled him from the synagogue; they pronounced theological judgment ("this man is a sinner") on Jesus. Now they stand before the Light itself and frame their question as a confident rhetorical denial. Their very tone betrays the blindness they deny.
Verse 41 — "If you were blind, you would have no sin" Jesus's reply is among the most theologically dense in the Fourth Gospel. He draws a sharp distinction between two kinds of not-seeing: involuntary blindness (ignorance in the morally excusing sense) and willful not-seeing (the closure of the mind that comes from claiming one already possesses the truth). The condition "if you were blind" refers to a genuine incapacity — the state of someone who has never had access to the light, who sins from weakness or ignorance rather than from studied rejection. Catholic moral theology identifies this as a factor that diminishes culpability (CCC §1860). But the Pharisees are not in that condition. They say, "We see" — they actively claim authoritative vision. This claim is precisely what makes their blindness sinful. Their sin "remains" (Greek: ) — a word of terrible gravity in Johannine theology, where "remaining" (menō) ordinarily describes the life-giving indwelling of Christ in the believer (Jn 15:4–5). Here, what remains in them is not the Vine's life but accumulated, uncleansed guilt.
Catholic tradition brings several unique resources to bear on these verses.
On the nature of sin and invincible ignorance: The Catechism (§1860–1861) distinguishes mortal sin — which requires full knowledge and deliberate consent — from sins committed in ignorance. Jesus's conditional ("if you were blind, you would have no sin") maps precisely onto this distinction. The Pharisees' culpability is not merely that they reject Jesus, but that they do so from a claimed position of authoritative knowledge. This is what the tradition calls peccatum in Spiritum Sanctum — sin against the Holy Spirit — in one of its species: presumption of one's own righteousness (cf. CCC §1864). Vatican II's Lumen Gentium (§16) applies this same logic to non-Christians: those who through no fault of their own do not know Christ may attain salvation, but this does not apply to those who, having encountered the truth, deliberately reject it.
On the judgment that is Christ's presence: St. Thomas Aquinas (Summa Theologiae III, q. 59, a. 2) distinguishes Christ's salvific mission from the judgment that accompanies it as a secondary effect. His presence does not impose blindness from outside; rather, it reveals a blindness already present. This is the iudicium discretionis — a judgment of discrimination — not of condemnation per se.
On Baptism as illumination: The Fathers — especially Cyril of Jerusalem and Justin Martyr — read John 9 in a baptismal key. The pool of Siloam (meaning "sent") is a type of the baptismal font. Verses 39–41 mark the theological conclusion of that baptismal sign: the newly illuminated see Christ; those who resist the sacramental economy remain in self-imposed darkness. The Rite of Christian Initiation of Adults still echoes this, with scrutinies that explicitly invoke John 9.
These verses confront contemporary Catholics with a diagnostic question that cuts across ideological lines: In what areas do I say "I see" when I am in fact blind? The Pharisees' error is not stupidity or malice in any obvious sense — they are educated, devout, and sincere. Their sin is the closure that comes from assuming their formation is complete, their interpretive framework adequate, their moral vision reliable without ongoing conversion.
For a Catholic today, this might manifest as a refusal to allow Scripture or Church teaching to challenge a settled political or cultural worldview. It may appear in the confessional as the habit of cataloguing others' sins more readily than one's own. It surfaces in parish life when expertise or long membership becomes a reason to stop listening.
The remedy Jesus implicitly offers is the disposition of the blind beggar — not a pretense of total ignorance, but the honest posture of one who knows they need to be given sight rather than confirming what they already think they see. The Examen of St. Ignatius Loyola is one practical tool: a daily practice of asking God to show us what we are not seeing, naming it honestly, and resisting the temptation to declare the examination already closed.
Typological and Spiritual Senses The entire chapter 9 is the New Testament fulfillment of Isaiah's great promise (Is 29:18; 35:5) that the Messiah would open the eyes of the blind — a promise fulfilled first in clay and spittle, then in the spiritual drama of verses 39–41. The man born blind is a type of the Gentile Church: born without prior access to the covenantal light, receiving sight as pure gift. The Pharisees, who "have Moses," ironically become a type of those who possess revelation but refuse its living fulfillment. St. Augustine, preaching on this passage, puts it memorably: "A worse blindness is that which knows not that it is blind." The physical healing is thus a sacramental sign (signum) pointing to the greater reality (res) of baptismal illumination — the Fathers consistently called Baptism photismos, "illumination," drawing directly on this and related Johannine texts.