Parallel
Ephesians 5:32
Nestle 1904 Greek New Testament · Berean Standard Bible
τὸ μυστήριον τοῦτο μέγα ἐστίν ἐγὼ δὲ λέγω εἰς Χριστὸν καὶ εἰς τὴν ἐκκλησίαν
This mystery is profound, but I am speaking about Christ and the church.