Libera Me is a part of the Requiem Mass of the Roman Catholic Church, as such it is in Latin.
These are the lyrics.Libera Me
Libera me, Domine, de morte aeternaEnglish Translation:
in die illa tremenda
quando coeli movendi sunt et terra,
dum veneris judicare saeculum per ignem.Tremens factus sum ego et timeo,
dum discussion venerit atque venture ira:
quando coeli movendi sunt et terra.
Deliver me, O Lord, from eternal death
on that awful day
when the heavens and earth shall be shaken
and you shall come to judge the world by fire.I am seized with fear and trembling
until the trial is at hand and the wrath to come:
when the heavens and earth shall be shaken.