Other Translations - Harbison

O magnum mysterium
et admirabile sacramentum
ut animalia viderent
Dominum natum
jacentem in praesepio.
Beata Virgo cujus viscera
meruerunt portare
Dominum Christum.
Ave Maria, gratia plena,
Dominus tecum, Amen.

O great mystery
and wonderful sacrament
that even the animals saw
the new-born Lord
lying in a manger.
Blessed Virgin, whose womb
was worthy to bear
our Lord Christ.
Hail Mary, full of grace,
the Lord is with you, Amen.