This is a great mystery: but I speak concerning Christ and the church.
This is a profound mystery — but I am talking about Christ and the church.
Τὸ μυστήριον τοῦτο μέγα ἐστίν· ἐγὼ δὲ λέγω εἰς Χριστὸν καὶ εἰς τὴν ἐκκλησίαν.
To mystērion toyto mega estin· egō de legō eis Christon kai eis tēn ekklēsian.