Therefore they could not believe, because that Esaias said again,
Berean Study Bible (BSB) - John 12:39 >For this reason they were unable to believe. For again, Isaiah says:
Textus Receptus (TR) - John 12:39 >Διὰ τοῦτο οὐκ ἠδύναντο πιστεύειν, ὅτι πάλιν εἶπεν Ἠσαΐας,