O Magnum Mysterium

O magnum mysterium,
et admirabile sacramentum,
ut animalia viderent Dominum natum,
iacentem in praesepio!
Beata Virgo, cujus viscera
meruerunt portare
Dominum Iesum Christum.
Alleluia!

—traditional Latin responsorial chant from the Matins of Christmas

O great mystery,
and wonderful sacrament,
that animals should see the newborn Lord,
lying in a manger!
Blessed is the virgin whose womb
was worthy to bear
the Lord, Jesus Christ.
Alleluia!