OET interlinear YHN (JHN) 5:39

uW Translation Notes:

Note 1 topic: figures-of-speech / explicit

ἐν αὐταῖς ζωὴν αἰώνιον ἔχειν

in them (Some words not found in SR-GNT: Ἐραυνᾶτε τάς Γραφάς ὅτι ὑμεῖς δοκεῖτε ἐν αὐταῖς ζωήν αἰώνιον ἔχειν καί ἐκεῖναι εἰσίν αἱ μαρτυροῦσαι περί ἐμοῦ)

Some Jews in Jesus’ time believed that a person could earn their way to heaven by studying the Scriptures and doing good deeds. If this might confuse your readers, you could express the meaning explicitly. Alternate translation: [you will get eternal life if you study them]

Note 2 topic: writing-pronouns

ἐν αὐταῖς & ἐκεῖναί εἰσιν αἱ

in them & (Some words not found in SR-GNT: Ἐραυνᾶτε τάς Γραφάς ὅτι ὑμεῖς δοκεῖτε ἐν αὐταῖς ζωήν αἰώνιον ἔχειν καί ἐκεῖναι εἰσίν αἱ μαρτυροῦσαι περί ἐμοῦ)

In this verse, them, these, and the ones all refer to the Scriptures. If it would be helpful in your language, you could state some of these words explicitly. Alternate translation: [in the Scriptures … these Scriptures are the ones]

Note 3 topic: figures-of-speech / personification

ἐκεῖναί εἰσιν αἱ μαρτυροῦσαι περὶ ἐμοῦ

(Some words not found in SR-GNT: Ἐραυνᾶτε τάς Γραφάς ὅτι ὑμεῖς δοκεῖτε ἐν αὐταῖς ζωήν αἰώνιον ἔχειν καί ἐκεῖναι εἰσίν αἱ μαρτυροῦσαι περί ἐμοῦ)

Jesus is speaking of the Scriptures as though they were a person who is testifying about who he is. If it would be helpful in your language, you could translate this plainly. Alternate translation: [these indicate who I am]