Mysteries hidden from prophets and angels made known to her
You know, Mary, what was hidden from the patriarchs and prophets. You have learned, O Virgin, what until now was hidden even from the angels. You have heard, most holy one, what the choir of those inspired by the divine Spirit was never found worthy to hear. Moses and David, Isaiah and Daniel, and all the prophets foretold Him, but they did not know the manner or the reason. But you alone, most holy Virgin, now receive the mysteries that were unknown to all of them, and you understand their cause. For where the Holy Spirit is, all things are brought to completion readily and without delay. Where divine grace is present, all things are possible with God (Luke 1:37; Matthew 19:26).
Latin
Nosti o Maria, quae Patriarchas et prophetas latebant. Didicisti, o Virgo, quae adhuc Angelis etiam fuerunt abscondita. Audisti, o sanctissima, quae nunquam, divino spiritu afflatorum chorus audire meruit. Moyses et David, Esaias ac Daniel, cunctique prophetae de ipso praedicaverunt: sed modum rationemve ignorarunt. Tu vero sola, o sanctissima Virgo, quae his omnibus ignota fuerunt mysteria, nunc suscipis, causamque intelligis. Nam ubi Spiritus Sanctus, cuncta prompte atque incunctanter perficiuntur. Ubi divina adest gratia, omnia Deo sunt possibilia.