This mystery is profound, and I am saying that it refers to Christ and the church.
32. This is a great mystery. He concludes by expressing his astonishment at the spiritual union between Christ and the church. This is a great mystery; by which he means, that no language can explain fully what it implies. It is to no purpose that men fret themselves to comprehend, by the judgment of the flesh, the manner and character of this union; for here...
All Christians owe one another mutual submission in reverence for God, yielding and not lording it over each other. Where this spirit rules, husbands and wives will discharge their duties well: the church's submission to Christ teaches wives their part, and Christ's love teaches husbands theirs.
AI summary
Commenting on Ephesians 5:21-33
Verse 32. This is a great mystery. The Latin Vulgate translates this, sacramenturn hoc magnum est--" this is a great sacrament"--and this is the proof, I suppose, and the only proof adduced by the Papists, that marriage is a sacrament. But the original here conveys no such idea.