Summary
Quick facts
- Strong’s Number
- G4456
- Original Word
- πωρόω
- Transliteration
- pōróō
- Pronunciation
- po-ro'-o
- Part of Speech
- verb
- Root / Etymology
- apparently from (a kind of stone);
- Frequency
- 5×
- Gematria
- 1850
Where it appears
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Definition
Strong 1890 to petrify, i.e. (figuratively) to indurate (render stupid or callous)
blindharden
apparently from (a kind of stone);

Commentary
Contributors: · · · ·
The Stone That Sees
Five times this verb appears in the sacred pages — five moments where the Living God diagnoses the hardest disease of the human soul. The Greek tongue calls it pōróō, a word that comes from the very stone beneath your feet. The sages of old understood: there is a hardening that is not of the body but of the spirit, a petrification of the heart that renders a person blind to the glory of the Most High. You have felt it, perhaps — that moment when the Word of the Lord strikes your ears but finds no entrance, when the truth of His covenant washes over you like water over stone. This is the mystery of pōróō, a verb that speaks not of what you do, but of what is done to you, and what you allow to be done.
The First Stone Cast
The Holy Spirit first uses this word in the Gospel according to Mark, where we read of those who saw the works of Messiah with their own eyes yet remained unmoved. Mark 6:52 tells us that the disciples themselves, after witnessing the miracle of the loaves, had their hearts pōróō — hardened, petrified, made like stone. Here the verb appears in the perfect passive participle, a grammatical form that speaks of a condition that has come upon them and continues to hold them. They were not actively hardening themselves; rather, a hardness had settled upon them like frost upon the ground. The apostolic tradition teaches that this is the most dangerous state: to be hardened without knowing it, to be blind while believing you see. The early church understood that this passive hardening is the work of the Accuser, who whispers that the miracles of God are not enough, that you need yet another sign before you will believe.
The Potter and the Clay
In the scroll of the prophet Isaiah, the Hebrew concept that pōróō translates finds its deepest expression. The LXX uses this verb to render the Hebrew shamen — to make fat, to dull, to close up. When the Lord sends Isaiah to speak to a people whose hearts have grown fat and whose ears are heavy (Isaiah 6:10), He is describing the same condition Paul later names in Romans 11:25 — a partial hardening has come upon Israel. The rabbis of old observed that this hardening serves a mysterious purpose: it is not the final word, but a temporary veil. The apostolic faith teaches that this hardening opened the door for the nations, that the breaking of the natural branches allowed the wild olive to be grafted in. Yet you must tremble at this mystery, for if God can harden for a season, He can also soften in an instant. The stone that blocks your vision today may be the very stone He rolls away tomorrow.
The Grammar of Petrification
Consider carefully the tense and mood of this verb as the New Testament writers employ it. In John 12:40, the Evangelist quotes Isaiah again, using the aorist passive — a completed action, a hardening that has been accomplished. Yet in 2 Corinthians 3:14, Paul uses the perfect passive participle: their minds were hardened and remain hardened. This is the terror of the perfect tense — a past action with ongoing consequences. But note also that in Ephesians 4:18, the same apostle writes of those who are darkened in their understanding, having become callous (pōróō again, in the perfect tense). The early church fathers saw in these grammatical forms a warning: hardening is not a single event but a process, a gradual petrification that begins with a single refusal and ends with a heart of stone. You must ask yourself: is the soil of your soul becoming packed and hard, or is it being broken by the plow of His Word?
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The Hardening of the Nations
It is the Apostle Paul who uses this verb most frequently, and his usage reveals a theological depth that the classical Greek world could not have imagined. Where the philosophers spoke of pōróō as a natural dullness of the mind, Paul sees it as a spiritual blindness brought on by the rejection of divine revelation. In Romans 11:7, he writes that Israel did not obtain what it was seeking, but the elect obtained it, and the rest were hardened. This is not the caprice of a distant deity, but the righteous judgment of a God who gives people over to the hardness they have chosen. The LXX had already prepared this ground, using pōróō to translate the Hebrew chazaq — to strengthen, to make firm — when describing Pharaoh's heart. The connection is unmistakable: as Pharaoh hardened his heart against the signs of Moses, so the generation of Yeshua's day hardened itself against the greater signs of the Son of God. And you, standing at the crossroads of this same choice, must decide whether your heart will be softened by His mercy or hardened by His judgment.
The Veil and the Stone
In the second letter to the Corinthians, Paul unveils the deepest mystery of this hardening. He writes in 3:14 that their minds were hardened, for until this very day the same veil remains unlifted when the old covenant is read. The veil is not on the text but on the heart. Yet here is the Messianic breakthrough: when one turns to the Lord, the veil is taken away. The same verb that describes the hardening of Pharaoh and the blinding of Israel also describes the work of Messiah, who comes to remove the heart of stone and give a heart of flesh. The early church understood that Yeshua Himself was never hardened, though He was tempted in every way as we are. He is the Stone the builders rejected, but He is also the Living Stone who shatters every hardened heart that comes to Him in faith. Where Adam's heart was turned to stone by the serpent's lie, the Second Adam comes to break that stone with the hammer of His resurrection.
The Bridge of the Seventy
The LXX translators chose pōróō to render at least three distinct Hebrew verbs: shamen (to grow fat, Isaiah 6:10), chazaq (to strengthen, Exodus 9:12), and qashah (to be hard, Deuteronomy 2:30). This multiplicity reveals something profound: the Greek word carries within it the full weight of the Hebrew understanding of spiritual dullness. The fat heart of Isaiah, the strong heart of Pharaoh, the hard heart of Sihon — all are gathered into this single Greek verb. The apostolic tradition teaches that this convergence is no accident, for the Holy Spirit prepared the Greek language to receive the Hebrew mysteries. When you read pōróō in the New Testament, you are hearing the echo of every prophet who cried out against the stubbornness of God's people. You are standing in the long line of those who have been warned: do not harden your hearts as at Meribah, as in the day of Massah in the wilderness (Psalm 95:8).
The Softening of Your Soul
Now the question returns to you, the one who has heard these things. The verb pōróō has been spoken over your life — not as a curse, but as a diagnosis. The Great Physician names the disease so that He may heal it. You have felt the stone grow heavy in your chest when the Word was preached, when the Spirit moved, when the love of Messiah was offered. Do not despair, for the same God who hardened Pharaoh also gave him every opportunity to repent. The same Lord who veiled the eyes of Israel also sent His Son to tear the veil. The apostolic faith calls you today to turn your face toward the Living Stone, to let His tears fall upon the dust of your heart until it becomes mud, and that mud becomes sight. For as He once made clay of the ground and opened the eyes of the blind man, so He can take the stone of your heart and make it see. Let Him do this work in you, while it is still called today.