4451. purósis
Lexical Summary
purósis: Burning, fiery trial, testing by fire

Original Word: πύρωσις
Part of Speech: Noun, Feminine
Transliteration: purósis
Pronunciation: poo'-ro-sis
Phonetic Spelling: (poo'-ro-sis)
KJV: burning, trial
NASB: burning, fiery ordeal
Word Origin: [from G4448 (πυρόω - burn)]

1. ignition
2. (specially) smelting
3. (figuratively) conflagration, calamity as a test

Strong's Exhaustive Concordance
burning, trial.

From puroo; ignition, i.e. (specially), smelting (figuratively, conflagration, calamity as a test) -- burning, trial.

see GREEK puroo

NAS Exhaustive Concordance
Word Origin
from puroó
Definition
a burning, hence a refining
NASB Translation
burning (2), fiery ordeal (1).

Thayer's Greek Lexicon
STRONGS NT 4451: πύρωσις

πύρωσις, πυρώσεως, (πυρόω), a burning: Revelation 18:9, 18; the burning by which metals are roasted or reduced; by a figure drawn from the refiner's fire (on which cf. Proverbs 27:21), calamities or trials that test character: 1 Peter 4:12 (Tertullian adv. Gnost. 12 ne expavescatis ustionem, quae agitur in vobis in tentationem), cf. 1 Peter 1:7 (( πύρωσις τῆς δοκιμασίας, 'Teaching etc. 16, 5 [ET])). (In the same and other senses by Aristotle, Theophrastus, Plutarch, others.)

Topical Lexicon
Root Meaning and Imagery

The word denotes an intense burning or fiery heat. In Scripture the image consistently serves a metaphorical function, portraying either the refining of God’s people through suffering or the consuming judgment of God against unrepentant wickedness. The same heat that purifies precious metal destroys dross; thus the term carries both hope and warning.

Canonical Occurrences

1 Peter 4:12 – “Beloved, do not be surprised at the fiery trial that has come upon you, as though something strange were happening to you.” The “fiery trial” is the crucible through which believers share in Christ’s sufferings, producing joy and glory.
Revelation 18:9 – Kings of the earth “will weep and mourn over her when they see the smoke of her burning.”
Revelation 18:18 – Merchants cry, “What city was ever like this great city?” as they watch “the smoke from her burning.”

The Petrine use stresses purification of saints; the Johannine passages depict retributive judgment on end-time Babylon.

Old Testament Echoes

Malachi 3:2-3 speaks of the Lord “like a refiner’s fire,” promising to purify the sons of Levi. Psalm 66:10, Proverbs 17:3, and Zechariah 13:9 employ the furnace image to describe covenantal testing. Isaiah 47:14 and Jeremiah 51 anticipate Babylon’s final destruction by fire, forming the backdrop for Revelation 18.

Theological Themes

1. Divine Refinement: God ordains trials to purge impurity and mature faith (James 1:2-4; Romans 5:3-5).
2. Participatory Suffering: Sharing Christ’s sufferings binds believers to His glory (Philippians 3:10; 1 Peter 1:6-7).
3. Eschatological Judgment: The same fire that sanctifies the church consumes the rebellious world (2 Thessalonians 1:7-9).
4. Vindication of God’s Justice: Revelation highlights the public, irreversible nature of Babylon’s downfall, assuring saints of ultimate recompense (Revelation 18:20).

Christological and Ecclesiological Dimensions

Christ endured the ultimate fiery ordeal at the cross, absorbing wrath so that His people might be refined rather than destroyed. The church, united to Him, experiences calibrated trials that conform her to His image, preparing the Bride for the marriage supper of the Lamb (Revelation 19:7-9).

Eschatological Implications

Revelation’s twin references anticipate a literal, global collapse of the final world system. The imagery underscores the immediacy and completeness of divine wrath: “Her plagues will come in a single day—death and grief and famine—and she will be consumed by fire” (Revelation 18:8). The saints are called to separate from Babylon (Revelation 18:4) and to persevere, knowing that present sufferings contrast starkly with the impending conflagration upon evil.

Pastoral and Discipleship Applications

• Encourage believers to interpret hardships as purposeful refinement, not random misfortune.
• Foster solidarity with suffering brethren worldwide, praying that their testing will display the genuineness of faith.
• Warn against complicity with worldly systems destined for fiery judgment.
• Cultivate eternal perspective: temporary flames produce “an eternal weight of glory far beyond comparison” (2 Corinthians 4:17).

Historical Interpretation

Early church fathers (e.g., Tertullian, Cyprian) viewed persecution as the furnace that strengthens the witness of the church. Reformers applied the term both to trials under oppressive regimes and to God’s purifying work through doctrinal reformation. Evangelical expositors continue to hold that personal afflictions and global upheavals alike serve God’s sanctifying and judicial purposes.

Correlation with Related Greek Terms

The concept integrates with δοκίμιον (“testing,” 1 Peter 1:7) and πύρ (“fire,” 1 Corinthians 3:13), forming a biblical theology of purgative suffering and eschatological fire. Unlike ordinary persecution (διωγμός), the word highlights the inner, purifying intent of God’s sovereign hand.

Homiletical and Devotional Uses

Sermons may contrast the refining fire of 1 Peter with the destructive fire of Revelation, urging listeners to embrace the former now to escape the latter later. Devotionally, meditating on fiery trials can foster gratitude for Christ’s presence “in the furnace” (Daniel 3:25) and anticipation of the New Jerusalem where “mourning and crying and pain will be no more” (Revelation 21:4).

Key Cross References

Isaiah 48:10; Zechariah 13:9; Malachi 3:2-3; 1 Corinthians 3:13; 2 Thessalonians 1:7-9; James 1:2-4; 1 Peter 1:6-7; Revelation 18:4-9.

Forms and Transliterations
πυρωσει πυρώσει πυρωσεως πυρώσεως πύρωσις πυρωτών purosei purōsei puroseos purōseōs pyrosei pyrōsei pyrṓsei pyroseos pyrōseōs pyrṓseos pyrṓseōs
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Interlinear GreekInterlinear HebrewStrong's NumbersEnglishman's Greek ConcordanceEnglishman's Hebrew ConcordanceParallel Texts
Englishman's Concordance
1 Peter 4:12 N-DFS
GRK: ἐν ὑμῖν πυρώσει πρὸς πειρασμὸν
NAS: do not be surprised at the fiery ordeal among
KJV: concerning the fiery trial which
INT: among you fire for trial

Revelation 18:9 N-GFS
GRK: καπνὸν τῆς πυρώσεως αὐτῆς
NAS: they see the smoke of her burning,
KJV: the smoke of her burning,
INT: smoke of the burning of her

Revelation 18:18 N-GFS
GRK: καπνὸν τῆς πυρώσεως αὐτῆς λέγοντες
NAS: the smoke of her burning, saying,
KJV: the smoke of her burning, saying, What
INT: smoke of the burning of her saying

Strong's Greek 4451
3 Occurrences


πυρώσει — 1 Occ.
πυρώσεως — 2 Occ.

4450b
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