Catechism of the Catholic Church §1659 — excerpt
St. Paul said: "Husbands, love your wives, as Christ loved the Church.... This is a great mystery, and I mean in reference to Christ and the Church" (Eph 5:25, 32).
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.