Libera me, Domine, de morte aeterna, in die illa tremenda: Quando caeli movendi sunt et terra. Dum veneris judicare saeculum per ignem. (Deliver me, O Lord, from eternal death on that fearful day, when the heavens and the earth are shaken, when you come to judge the world by fire.)
Text comparison / side-by-side Latin-English view Libera Angel Pdf
If the searcher intends to find the traditional Requiem text, the closest match is . Libera me, Domine, de morte aeterna, in die
You can find various arrangements (Piano, SATB, Violin) on platforms like MuseScore and Scribd . de morte aeterna