αὐτοῦ (autou) in Matthew 1:25: Genitive Singular Masculine

Pronoun: the word points to a person already identified in context rather than naming that person anew.

Genitive: the form usually marks a relationship, possession, reference, or other dependent link in the clause.

Singular: the form is grammatically singular in this occurrence and points to one referent in context.

Masculine: the noun class is masculine in form, but that grammatical marking does not by itself make a theological or natural gender claim.

τὸ ὄνομα

The genitive phrase depends on name and identifies whose name is being given. In this verse, the form points to the child being named Jesus.

It functions as a genitive of reference or possession, linking the name to the child involved in the naming action.

It does not change the meaning of name into something else, and it does not by itself define the child's identity beyond the naming context.

High: The genitive pronoun ties the name Jesus to the child at the close of the birth account.

Genitive pronoun modifying name in a naming clause. identifies the child as the one whose name is given. Attached to the his name Jesus phrase. Governed by Joseph's act of naming the child. The pronoun points to the child, while the narrative reports Joseph's obedient naming.

Whose name did Joseph call Jesus? He called the child's name Jesus.

Direct: The form directly supports his name.

The pronoun identifies the child's name, not Joseph's own name. The naming action must be read with Matthew 1:21's explanation of the name.

Genitive pronoun points to the actor rather than the named child: The phrase his name refers to the child being named; the verb identifies Joseph as the actor.

The witness reads 'καὶ ἐκάλεσε τὸ ὄνομα αὐτοῦ ἸΗΣΟΥΝ', so the form stands in the naming statement after the birth context.

The lexeme αὐτός commonly functions as a reference word for 'he, she, it, they' or as 'same' depending on context.

Here the genitive singular masculine form fits the phrase his name and points to the male child already in the verse context.

The verse says that Joseph named the child Jesus, so the pronoun supports the simple narrative flow rather than drawing attention to itself.

Within Matthew 1:25, the form fits the broader birth and naming account and keeps the focus on the child and the act of naming.

For communication, this form clarifies reference and prevents ambiguity about whose name is being given.

Do not derive a theological statement from the masculine form alone, and do not treat the grammar as overriding the immediate narrative context.