Ἰησοῦ (Iesou) in Matthew 1:18: Noun Genitive Singular Masculine
Ἰησοῦ (Iesou) in Matthew 1:18
Textual Witness
In the witnessed text, the surface form is Ἰησοῦ in the phrase Τοῦ δὲ Ἰησοῦ Χριστοῦ ἡ γέννησις.
How The Form Affects Interpretation
The form helps the reader see that the verse is introducing the account about Jesus Christ's birth, while the broader context supplies the full sense.
How To Communicate It
In teaching or translation, the grammar can be noted as a relational marker, but the communicated meaning should remain anchored in the birth narrative itself.
What Not To Say
- Grammatical form should serve context, not override it.
- Genitive case here signals relationship, but the phrase and verse context determine the interpretive force.
- Masculine gender is a grammatical class marker here and should not be turned into a theological gender claim.
What Does The Label Mean?
Noun: the form names a specific person, here Jesus, rather than a quality or action.
Genitive: the form usually marks a relationship to another word, and here it belongs in the opening phrase of the sentence.
Singular: the form refers to one individual in this occurrence, not to a group.
Masculine: the noun is grammatically masculine, which describes the word's class and does not by itself make a theological gender claim.
What The Form Does In This Verse
Τοῦ ... Ἰησοῦ Χριστοῦ
The genitive form is governed by the surrounding noun phrase and helps identify the relationship expressed by the sentence opening.
It functions within the phrase that introduces the birth account and helps specify whose birth is being named.
It does not by itself act as the main verb, and it does not force a meaning beyond the clause's broader narrative setting.
How Much The Form Matters Here
High: The genitive proper name identifies whose birth is being introduced in Matthew 1:18.
Genitive singular proper name modifying birth. marks the birth as the birth of Jesus Christ. Attached to the birth phrase in Matthew 1:18. Governed by the noun phrase that introduces the birth account. The form sets the subject matter of the birth account while the following narrative explains the circumstances.
Whose birth is being introduced? The genitive identifies it as the birth of Jesus Christ.
Direct: The form directly supports wording such as "the birth of Jesus Christ."
The genitive identifies the relation to birth, while the narrative context explains Mary, Joseph, and the Spirit. The form should not be made to carry claims that belong to the whole birth account.
Case alone supplies the doctrine of the birth: The genitive names whose birth is in view; the surrounding narrative supplies the theological detail. grammar replaces narrative context: The form introduces the account and must be read with the whole sentence.
How The Interpretation Is Derived
In the witnessed text, the surface form is Ἰησοῦ in the phrase Τοῦ δὲ Ἰησοῦ Χριστοῦ ἡ γέννησις.
The lemma is Ἰησοῦς, the proper name Jesus, so the form refers to that known individual in context.
The genitive case contributes a relationship inside the phrase, but the verse context determines that this is the birth of Jesus Christ.
The line introduces the birth account by naming Jesus Christ and then moving into the circumstances of Mary's betrothal and conception.
Within Matthew's Gospel, the name anchors the account to the promised Messiah and to the unfolding story of his origin.
For readers, the form signals that the verse begins by identifying the subject matter of the genealogy and birth narrative, not by narrating an action from Jesus.
Do not derive a separate theological claim from genitive form alone, and do not treat grammatical case as overriding the sentence's narrative meaning.