OET interlinear ACTs 13:12

uW Translation Notes:

ὁ ἀνθύπατος

the proconsul

A proconsul was a governor in charge of a Roman province. Alternate translation: [the governor]

Note 1 topic: figures-of-speech / activepassive

ἐκπλησσόμενος ἐπὶ τῇ διδαχῇ τοῦ Κυρίου

˓being˒_astonished (Some words not found in SR-GNT: Τότε ἰδών ὁ ἀνθύπατος τό γεγονός ἐπίστευσεν ἐκπλησσόμενος ἐπί τῇ διδαχῇ τοῦ Κυρίου)

If your language does not use this passive form, you could express the idea in active form or in another way that is natural in your language. It may be helpful to begin a new sentence here. Alternate translation: [The teaching of the Lord astonished him]

Note 2 topic: figures-of-speech / metonymy

τῇ διδαχῇ τοῦ Κυρίου

the teaching ˱of˲_the Lord

Luke is using the word teaching to mean the truth and power associated with the teaching about Jesus. Alternate translation: [the truth and power that accompanied the teaching of the Lord]

Note 3 topic: figures-of-speech / possession

τῇ διδαχῇ τοῦ Κυρίου

the teaching ˱of˲_the Lord

In this possessive form, the Lord is the object rather than the subject of teaching. That is, this does not mean “what the Lord taught,” it means “what Barnabas and Paul taught about the Lord.” you could state that as an alternate translation.