OET interlinear YHN (JHN) 7:42

uW Translation Notes:

Note 1 topic: figures-of-speech / rquestion

οὐχ ἡ Γραφὴ εἶπεν, ὅτι ἐκ τοῦ σπέρματος Δαυεὶδ, καὶ ἀπὸ Βηθλέεμ, τῆς κώμης ὅπου ἦν Δαυεὶδ, ἔρχεται ὁ Χριστός?

not the Scripture said that out_of the seed (Some words not found in SR-GNT: οὐχ ἡ Γραφὴ εἶπεν ὅτι ἐκ τοῦ σπέρματος Δαυὶδ καὶ ἀπὸ Βηθλέεμ τῆς κώμης ὅπου ἦν Δαυὶδ ἔρχεται ὁ Χριστός)

The people are using the form of a question to add emphasis. This group of people does not believe Jesus is the Messiah, because they do not think he came from Bethlehem. If it would be helpful in your language, you could express this type of question by translating the words as a statement or an exclamation and communicate the emphasis in another way. Alternate translation: [The scriptures surely say that the Christ will come from the seed of David and from Bethlehem, the village where David was!]

Note 2 topic: figures-of-speech / personification

οὐχ ἡ Γραφὴ εἶπεν

not the Scripture said

Scripture here is referred to as though it were a person who could speak. If this use of said might be confusing for your readers, you could express this meaning plainly. Alternate translation: [Have the prophets not said in the scriptures]