What does μονογενής (monogenḗs) mean in the Bible?
G3439 describes what is unique, one of a kind, or one and only. In John, the word is concentrated on the Son.
Greek · G3439
μονογενής
Unique
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μονογενής G3439
Pronunciation monogenḗs
What does μονογενής (monogenḗs) mean in the Bible?
G3439 describes what is unique, one of a kind, or one and only. In John, the word is concentrated on the Son.
Reader summary
Full entry for μονογενής (G3439) · Open the biblical lexicon
Questions this entry answers
How does the BSB render G3439?
The BSB source-word alignment has 9 aligned rows for this entry. Common renderings include one and only (3), [but] the one and only Son (1), [the] one and only [Son] (1), one and only son (1), only (1).
Where does μονογενής (monogenḗs) appear in Scripture?
The source-word alignment first shows this entry at Luke 7:12. Its strongest book concentrations include John (4), Luke (3), 1 John (1), Hebrews (1).
Are there verse guides for μονογενής (monogenḗs)?
This entry includes 3 verse guides that explain exact original-language forms in context.
What This Word Actually Means
G3439 describes what is unique, one of a kind, or one and only. In John, the word is concentrated on the Son. It does not merely say that Jesus is unusual, important, or spiritually impressive. John uses it for the Son who comes from the Father, reveals the Father, receives the Father's love, and is given for the life of the world. The word therefore belongs to the Gospel's witness to Jesus' singular Sonship.
It should be handled with doctrinal care because later debates about begotten language can either overburden the word or flatten it into bare uniqueness. John gives the controlling frame: the Word became flesh, the one and only Son makes God known, and God's love is shown in giving His one and only Son.
How the Bible Uses It
G3439 gathers John's unique Son language around incarnation, revelation, divine love, belief, and condemnation. The word serves the Gospel's claim that Jesus is not one revealer among many, but the one and only Son from the Father.
- John.1.14
The Word became flesh and made His dwelling among us. We have seen His glory, the glory of the one and only Son from the Father, full of grace and truth.
The Word becomes flesh, and His glory is seen as the glory of the one and only Son from the Father. The word stands inside incarnation and revealed glory.
- John.1.18
No one has ever seen God, but the one and only Son, who is Himself God and is at the Father’s side, has made Him known.
The one and only Son, Himself God and at the Father's side, makes God known. John ties uniqueness to revelation of the Father.
- John.3.16
For God so loved the world that He gave His one and only Son, that everyone who believes in Him shall not perish but have eternal life.
God's love is shown by the giving of His one and only Son. The word marks the unmatched worth of the gift, not merely the intensity of feeling.
- John.3.18
Whoever believes in Him is not condemned, but whoever does not believe has already been condemned, because he has not believed in the name of God’s one and only Son.
Condemnation is described in relation to unbelief in the name of God's one and only Son. The word presses the reader toward the decisive identity of Jesus.
Source Word Evidence
BSB source-word alignment connects this entry to exact verse rows, English rendering, source form, transliteration, and parsing.
How English Renders It one and only 3× John 3:16, John 3:18, 1 John 4:9
[but] the one and only Son 1× John 1:18
[the] one and only [Son] 1× John 1:14
one and only son 1× Hebrews 11:17
only 1× Luke 8:42
only child 1× Luke 9:38
the only 1× Luke 7:12
Show sample aligned rows
Luke 7:12 μονογενὴς to the only Adjective - Nominative Masculine Singular Luke 8:42 μονογενὴς to only Adjective - Nominative Feminine Singular Luke 9:38 μονογενής to only child Adjective - Nominative Masculine Singular John 1:14 μονογενοῦς to [the] one and only [Son] Adjective - Genitive Masculine Singular John 1:18 μονογενὴς to [but] the one and only Son Adjective - Nominative Masculine Singular John 3:16 μονογενῆ to one and only Adjective - Accusative Masculine Singular John 3:18 μονογενοῦς to one and only Adjective - Genitive Masculine Singular Hebrews 11:17 μονογενῆ to one and only son Adjective - Accusative Masculine Singular 1 John 4:9 μονογενῆ to one and only Adjective - Accusative Masculine Singular
Usage map
A compact distribution from source-word alignment before the full evidence tables.
First aligned row Luke 7:12
Aligned rows 9
Books represented 4
Luke 3 John 4 Hebrews 1 1 John 1
Source forms
μονογενῆ 3x monogenē John 3:16, Hebrews 11:17, 1 John 4:9
μονογενὴς 3x monogenēs Luke 7:12, Luke 8:42, John 1:18
μονογενοῦς 2x monogenous John 1:14, John 3:18
μονογενής 1x monogenēs Luke 9:38
Parsing patterns
Adjective - Accusative Masculine Singular 3x John 3:16, Hebrews 11:17, 1 John 4:9
Adjective - Nominative Masculine Singular 3x Luke 7:12, Luke 9:38, John 1:18
Adjective - Genitive Masculine Singular 2x John 1:14, John 3:18
Adjective - Nominative Feminine Singular 1x Luke 8:42
Using This Word Well
Be careful not to...
- When John calls Jesus the one and only Son, read the term with the Word made flesh and the Son who makes the Father known.
- Let the word deepen worship and faith without turning it into a detached debate over terminology.
Avoid claiming...
- Do not claim that G3439 by itself proves every point of later creedal language.
- Do not claim that Jesus is unique only in the way any significant religious figure is unique.
Key Verse and Form Guides
Verse-level guides showing how this original-language form works in its specific context, including grammar, verse function, and guarded interpretation.
John 1:14 Adjective Genitive Singular Masculine
μονογενοῦς monogenous unique The form gently narrows the sense of the glory seen: it is not generic glory, but glory viewed as belonging to the uniquely related Son from the Father. Read verse guide John 1:18 Adjective Nominative Singular Masculine
μονογενὴς monogenes unique The form sharpens the verse's portrait of the Son as uniquely qualified to reveal the Father, while leaving the broader meaning anchored in the full clause. Read verse guide John 3:16 Adjective Accusative Singular Masculine
μονογενῆ monogene unique The form clarifies what receives or completes the action in the local phrase. Read verse guide Evidence Summary
Messiah
Greek word. Only child or unique offspring; in John's Gospel, Christ's singular relation to God the Father.
Source Gloss
unique
Extended definition Source: STEPBible TBESG + Abbott-Smith
Only child or unique offspring; in John's Gospel, Christ's singular relation to God the Father.
(μόνος, γένος), [in LXX: Jdg.11:34, Psa.22:20 25:16 35:17 (יָחִיד), Tob.3:15 6:10, 14 8:17, Wis.7:22, Bar.4:16 * ;] only, only begotten (DCG, ii, 281), of sons and daughters : Luk.7:12 8:42 9:38, Heb.11:17; of Christ, Jhn.3:16, 18, 1Jn.4:9; μ. παρὰ πατρός, Jhn.1:14; μ. θεός, Jhn.1:18.
Greek Text Appearances
Textus Receptus witness, full corpus Greek token appearances from Scrivener 1894 Textus Receptus in the full New Testament corpus.
9 Greek text appearances shown. Linked morphology labels have verse guides.
Luke 7:12 Adjective Nominative Singular Masculine
μονογενὴς monogenhv
only, only-begotten, unique
Read verse Luke 8:42 Adjective Nominative Singular Feminine
μονογενὴς monogenhv
only, only-begotten, unique
Read verse Luke 9:38 Adjective Nominative Singular Masculine
μονογενής monogenhv
only, only-begotten, unique
Read verse monogenouv
only, only-begotten, unique
Read verse monogenhv
only, only-begotten, unique
Read verse monogenh
only, only-begotten, unique
Read verse John 3:18 Adjective Genitive Singular Masculine
μονογενοῦς monogenouv
only, only-begotten, unique
Read verse Hebrews 11:17 Adjective Accusative Singular Masculine
μονογενῆ monogenh
only, only-begotten, unique
Read verse 1 John 4:9 Adjective Accusative Singular Masculine
μονογενῆ monogenh
only, only-begotten, unique
Read verseFull New Testament corpus: 260 chapters, 7,957 verses, 140,628 tokens. Data source: honza/textus-receptus (data only), with authority check against byztxt/greektext-textus-receptus.
Grammatical Forms
How this word appears across different grammatical cases and numbers.
This word appears as a noun across 4 case and number patterns. The form changes show how the word functions in a sentence; they do not change the basic lexical meaning by themselves.
Form patterns 4 Aligned forms 9 Case pattern Nominative (4) Number pattern Singular (9)
Selected Scripture Witnesses
Selected passage-level study witnesses for this word. This section is not the full occurrence list.
New Testament Witnesses
Uniquely related Son, emphasizing singularity.
Additional Occurrences
John 1:1-18 μονογενής monogenḗs
unique, one of a kind
John 3:1-21 μονογενής monogenḗs
unique, one of a kind
Luke 9:37–43a μονογενής monogenḗs
Only, one of a kind
Showing 4 selected witnesses from 9 lexical occurrence verses.
Word Origins
μονογενής is built from these roots:
Why This Word Matters
Describes the Son's unique relationship to the Father. 1 John 4:7-12
The uniqueness of the Son magnifies the depth of the Father’s love.
Canonical Themes
Messiah
Part of These Phrases
Compound and idiomatic phrases that include this word. Follow a link to study the phrase and how its parts work together.
For the Preacher and Teacher
G3439 matters in John because the Gospel places Jesus' uniqueness inside relationship, revelation, and saving mission. The word is not an abstract label for religious greatness. In John 1, the unique Son comes from the Father, displays glory, and makes God known. In John 3, the same uniqueness becomes the measure of divine love and the dividing line of belief.
Teachers should therefore resist two errors. One error weakens the term into generic specialness. The other isolates the term from John's sentences and turns it into a detached doctrinal shortcut. John teaches readers to see the one and only Son as the Father's full self-disclosure and saving gift.
Anchor passage
John.1.18
Doctrinal connections
- G3056 Word: John's prologue places the unique Son inside the Word's incarnation and glory.
- G3962 Father: the word is governed by the Son's relation to the Father.
- G5207 Son: G3439 sharpens Son language toward singular Sonship.
- G26 Love: John 3 connects the Father's love with the giving of the one and only Son.
- G4100 Believe: belief and unbelief are measured in relation to the name of the one and only Son.
- G2222 Life: the gift of the Son is ordered toward eternal life for those who believe.
G3439 is an adjective that can describe what is unique or one of a kind. In John, its public force comes from the Father-Son context, not from the form in isolation.
From Old to New Testament
Scripture teaches that God reveals Himself through chosen messengers, prophets, and covenant signs. John presents Jesus as more than another messenger. The one and only Son is the definitive revealer and saving gift from the Father.
Sources
MorphGNT Strong's Dictionary XML — CC0 1.0 Public Domain
Open Scriptures Hebrew Bible (morphhb/OSHB) — CC BY 4.0
Open Scriptures Hebrew Lexicon — CC BY 4.0
Berean Standard Bible (BSB) source-word alignment - CC0 Public Domain