φῶς, (phos) in John 1:8: Noun Nominative Singular Neuter

Noun: the word names a reality or concept, here the image of light rather than a verbal action.

Nominative: the form commonly marks a subject or a predicate noun, and here it works in a clause that identifies who John was not.

Singular: the form is grammatically singular in this verse, so the reference is presented as one identifiable reality.

Neuter: the noun belongs to the neuter grammatical class, which helps agreement but does not by itself make a theological gender claim.

ἦν ἐκεῖνος τὸ φῶς

The noun stands in a nominative pattern with the verb 'ἦν' and the article, so it functions in an identifying statement rather than as an object.

It marks the predicate idea in the negative claim, saying John was not the light while the passage reserves that identity for another referent.

It does not by itself create a full theology of light, and it does not function here as a direct object or as a plural category.

High: The form helps mark the identity contrast between John as witness and the light as the one testified about.

Predicate nominative in a negative identity claim. names the identity denied of John. Attached to the negative clause saying John was not the light. Governed by the being verb and the article-marked noun phrase. The theology of light comes from the surrounding prologue, while the form marks this local identity relation.

What was John not? He was not the light; the noun functions in the clause as the identity denied of him.

Direct: The nominative predicate relation supports a direct rendering such as 'he was not the light.'

With a being verb, nominative nouns can require subject and predicate judgment from context, articles, and word order.

Nominative case proves theological emphasis by itself: The case supports the identity relation, but the passage supplies the theological significance of the light.

The witness reads 'οὐκ ἦν ἐκεῖνος τὸ φῶς, ἀλλ᾽ ἵνα μαρτυρήσῃ περὶ τοῦ φωτός.' The form appears as 'φῶς' with nominative singular neuter morphology.

The lemma is 'φῶς', meaning light. The lexical sense remains stable, while the form places that sense into the clause as an identifying term.

Within the sentence, the nominative form works with 'ἦν' to deny that John was the light. The nearby contrast and purpose clause show that the point is witness, not self-identification.

The verse says John was not the light, but came to testify concerning the light. The grammar supports that contrast by letting the noun serve the identification statement.

The wording fits broader Johannine use of light language as revelation and life, but this verse itself limits the claim to John's role as witness.

For teaching or translation, the form helps readers hear that John's identity is subordinate to the one he points to. The grammar sharpens the contrast without adding extra detail.

Do not derive a claim that the neuter form changes the meaning of the lemma, or that case alone proves more than the clause and context say.