4917. sunthlaó
Lexical Summary
sunthlaó: To crush together, to shatter, to break in pieces.

Original Word: συνθλάω
Part of Speech: Verb
Transliteration: sunthlaó
Pronunciation: soon-thlah'-o
Phonetic Spelling: (soon-thlah'-o)
KJV: break
NASB: broken to pieces
Word Origin: [from G4862 (σύν - along) and thlao "to crush"]

1. to dash together, i.e. shatter

Strong's Exhaustive Concordance
break.

From sun and thlao (to crush); to dash together, i.e. Shatter -- break.

see GREEK sun

HELPS Word-studies

4917 synthláō (from 4862 /sýn, "together with" and thlaō, "crush") – properly, pulverize, crushing parts together into dust (note the syn).

4917 /synthláō ("to break in pieces") implies to completely shatter, i.e. break-up into dust (Souter); (figuratively) to be crushed (devastated) by resisting (colliding with) Christ.

(Mt 21:44) This verse "graphically pictures the fate of the man who rejects Christ. The verb means to shatter. We are familiar with an automobile that dashes against a stone wall, a tree, or a train and the ruin that follows. Will scatter him as dust (3039 /likmáō). The verb was used of winnowing out the chaff and then of grinding to powder. This is the fate of him on whom this Rejected Stone falls" (WP, 1, 172).

NAS Exhaustive Concordance
Word Origin
from sun and thlaó (to crush)
Definition
to crush together
NASB Translation
broken to pieces (2).

Thayer's Greek Lexicon
STRONGS NT 4917: συνθλάω

συνθλάω, σύνθλω: 1 future passive συνθλασθήσομαι; to break to pieces, shatter (Vulg.confringo, conquasso): Matthew 21:44 (but T omits; L Tr marginal reading WH brackets the verse); Luke 20:18. (The Sept.; (Manetho, Alex. quoted in Athen, Eratosthenes, Aristotle (v. 1.)), Diodorus, Plutarch, others.)

Topical Lexicon
Linguistic Background

Strong’s Greek 4917 appears only in the future passive form συνθλασθήσεται (“will be crushed, dashed to pieces”). The verb evokes violent shattering rather than a mild breaking, underscoring total ruin when divine judgment is unleashed.

Context in the Gospels

Both New Testament uses occur in the same teaching moment—Matthew 21:44 and Luke 20:18—where Jesus cites Psalm 118’s rejected stone. Having pronounced the parable of the wicked tenants, He warns that two fates await all who encounter Him:

1. “He who falls on this stone will be broken to pieces” (Matthew 21:44) – the personal crash of stumbling in unbelief.
2. “On whomever it falls, it will crush him” (Luke 20:18) – the final, irreversible judgment at His appointed time.

The verb’s severity magnifies the contrast between saving faith and catastrophic rejection.

Old Testament Foundations

Israel’s Scriptures already connect the imagery of crushing with divine judgment. Isaiah 8:14–15 foretells that the Lord “will be a stone that causes people to stumble… many… will fall and be broken.” Daniel 2:34–35 pictures a stone that strikes and pulverizes the nations’ statue, filling the whole earth with God’s kingdom. Jesus therefore places Himself squarely in the prophetic stream: the Stone who judges idolatry and unbelief.

Christological Significance

Calling Himself the Stone, Jesus claims messianic authority and deity. Those who “fall” on Him experience painful but redemptive exposure of sin (brokenness that can lead to salvation). Those on whom the Stone “falls” face utter destruction at His return. The twin outcomes uphold both His mercy and His justice, displaying the perfect harmony of God’s character.

Historical Echoes

The immediate audience—Jerusalem’s leaders—soon witnessed a foretaste of this crushing when the city and temple fell in AD 70. The event reinforces the verb’s seriousness and foreshadows the final verdict at the Great White Throne (Revelation 20:11–15).

Eschatological Dimension

Synθλασθήσεται anticipates the consummation when Christ overthrows all opposition. Revelation’s “iron scepter” (Revelation 19:15) echoes the same total shattering. The language invites sober reflection on the irreversible nature of final judgment.

Pastoral and Discipleship Applications

• Gospel Urgency – The crushing imagery compels believers to plead with the lost, “Be reconciled to God” (2 Corinthians 5:20).
• Holy Fear – Souls already resting on the Cornerstone are reminded that grace is not cheap; the Stone they trust is also the Stone that crushes.
• Healthy Brokenness – Allowing the Word to “break” pride now is infinitely better than being shattered later. Spiritual disciplines that expose sin (James 1:22–25) align the heart with God’s purposes.

Homiletical Insights

A sermon or lesson can trace the Stone motif from Genesis 28:18, through Davidic psalms, to the Gospels, culminating in 1 Peter 2:6–8. Emphasize the two distinct verbs: “broken” (constructive) versus “crushed” (destructive). Illustrate with Jeremiah’s smashed jar (Jeremiah 19) to show that willful hardness invites irreversible ruin.

Doctrinal Affirmations

• The exclusivity of Christ: salvation or judgment hinges on one’s response to Him (John 3:18).
• The harmony of Scripture: New Testament usage of 4917 fulfills and clarifies Old Testament prophecy.
• Divine sovereignty: history will climax exactly as the Stone decrees, vindicating God’s righteousness.

References for Further Study

Matthew 21:33–46; Luke 20:9–19; Psalm 118:22–23; Isaiah 28:16; Daniel 2:44–45; Romans 9:32–33; 1 Peter 2:4–10; Revelation 19:11–21.

Forms and Transliterations
συνέθλασας συνέθλασεν συνθλάσει συνθλασθησεται συνθλασθήσεται συνθλάσω συντεθλασμένον sunthlasthesetai sunthlasthēsetai synthlasthesetai synthlasthēsetai synthlasthḗsetai
Links
Interlinear GreekInterlinear HebrewStrong's NumbersEnglishman's Greek ConcordanceEnglishman's Hebrew ConcordanceParallel Texts
Englishman's Concordance
Matthew 21:44 V-FIP-3S
GRK: λίθον τοῦτον συνθλασθήσεται ἐφ' ὃν
NAS: stone will be broken to pieces; but on whomever
KJV: this stone shall be broken: but on
INT: stone this will be broken on whomever

Luke 20:18 V-FIP-3S
GRK: τὸν λίθον συνθλασθήσεται ἐφ' ὃν
NAS: on that stone will be broken to pieces; but on whomever
KJV: that stone shall be broken; but on
INT: stone will be broken on whomever

Strong's Greek 4917
2 Occurrences


συνθλασθήσεται — 2 Occ.

4916
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