CCC 723

In Mary, the Holy Spirit fulfills the plan of the Father's loving goodness. With and through the Holy Spirit, the Virgin conceives and gives birth to the Son of God. By the Holy Spirit's power and her faith, her virginity became uniquely fruitful.¹⁰⁵ Cf. Lk 1:26-38; Rom 4:18-21; Gal 4:26-28.