OET interlinear YHN (JHN) 5:37

uW Translation Notes:

Note 1 topic: figures-of-speech / rpronouns

ὁ πέμψας με Πατὴρ, ἐκεῖνος μεμαρτύρηκεν

the ˓having˒_sent (Some words not found in SR-GNT: Καί ὁ πέμψας μέ Πατήρ ἐκεῖνος μεμαρτύρηκεν περί ἐμοῦ Οὔτε φωνήν αὐτοῦ πώποτε ἀκηκόατε οὔτε εἶδος αὐτοῦ ἑωράκατε)

The reflexive pronoun himself emphasizes that it is the Father, not someone less important, who has testified about who Jesus is. Use a way that is natural in your language to indicate this emphasis. Alternate translation: [none other than the Father himself who sent me has testified]

Note 2 topic: figures-of-speech / explicit

ὁ πέμψας με Πατὴρ

the ˓having˒_sent (Some words not found in SR-GNT: Καί ὁ πέμψας μέ Πατήρ ἐκεῖνος μεμαρτύρηκεν περί ἐμοῦ Οὔτε φωνήν αὐτοῦ πώποτε ἀκηκόατε οὔτε εἶδος αὐτοῦ ἑωράκατε)

Here this phrase refers to God. See how you translated this phrase in [5:23](../05/23.md).