Then the deputy, when he saw what was done, believed, being astonished at the doctrine of the Lord.
Berean Study Bible (BSB) - Acts 13:12 >When the proconsul saw what had happened, he believed, for he was astonished at the teaching about the Lord.
Textus Receptus (TR) - Acts 13:12 >Τότε ἰδὼν ὁ ἀνθύπατος τὸ γεγονὸς ἐπίστευσεν, ἐκπλησσόμενος ἐπὶ τῇ διδαχῇ τοῦ Κυρίου.