Ecce manu fortis
trivit retinacula mortis;
Plaude, creatura,
barathri iam despice iura.
Ibi confregit
Potentias, arcum, scutum
gladiumque et bellum;
Plaude, creatura,
perierunt vincula dura.
Behold, with the hand of the strong,
he has shredded the bonds of death;
Clap your hands, O creature,
look down now on the laws of the abyss.
There he has smashed
Powers: bow, shield
and sword, and war;
Clap your hands, O creature,
the hard shackles have passed away.
Audi, ecce, unde:
Lectio beati Pauli apostoli ad Corinthios. Fratres, expurgáte vetus ferméntum, ut sitis nova conspérsio, sicut estis ázymi.
Wherefore, hear and behold:
A reading from blessed Paul the Apostle to the Corinthians. Brethren, purge out the old leaven, that you may be the new dough, as you are unleavened.
Cantate Domino canticum novum, quia mirabilia fecit.
Audi, ecce, unde:
Etenim Pascha nostrum immolátus est Christus.
Res mira, res nova, res sancta.
Laudate Dominum, omnes angeli eius,
laudate eum, omnes virtutes eius.
Dragma reperta,
plaude, creatura,
dea sic plaudenda futura.
Sing to the Lord a new song, for he has done wonders.
Wherefore, hear and behold:
For Christ our Passover has been sacrificed.
A marvelous thing, a new thing, a holy thing!
Praise the Lord, all his Angels,
praise him, all his Powers.
As the coin has been found [cf. Luke 15:9],
clap your hands, O creature,
O future goddess to be applauded.
Itaque epulémur: non in ferménto véteri, neque in ferménto malítiae et nequitiæ: sed in ázymis sinceritátis et veritátis.
Therefore let us keep the feast: not in the old leaven, nor in the leaven of malice and iniquity, but in the unleavened bread of sincerity and truth.
(A troped epistle from the 12th century, my translation. Source information is in volume 49 of Hymni inediti. Liturgische Hymne des Mittelalters.)