O magnum mysterium et admirabile sacramentum O magnum mysterium et admirabile sacramentum Ut animalia viderent Dominum natum Viderent Dominum natum Jacentem in proesepio, jacentem in proesepio O beata virgo, cujus viscera me ruerunt portare Dominum Jesum Christum Alleluja, Alleluja, Alleluja Alleluja, Alleluja, Alleluja Alleluja!