Parallel
Romans 15:18
Nestle 1904 Greek New Testament · Berean Standard Bible
οὐ γὰρ τολμήσω τι λαλεῖν ὧν οὐ κατειργάσατο Χριστὸς δι’ ἐμοῦ εἰς ὑπακοὴν ἐθνῶν λόγῳ καὶ ἔργῳ
I will not presume to speak of anything except what Christ has accomplished through me in leading the Gentiles to obedience by word and deed,