If so be that ye have heard him, and have been taught by him, as the truth is in Jesus:
when you heard about Christ and were taught in him in accordance with the truth that is in Jesus.
εἴγε αὐτὸν ἠκούσατε καὶ ἐν αὐτῷ ἐδιδάχθητε, καθώς ἐστιν ἀλήθεια ἐν τῷ Ἰησοῦ·
eige ayton ēkoysate kai en aytō edidachthēte, kathōs estin alētheia en tō Iēsoy·