Dies Irae

"Dies Irae" (Day of Wrath) is a thirteenth century Latin hymn thought to be written by Thomas of Celano (1200 – c. 1265). It is a medieval Latin poem characterized by its accentual stress and its rhymed lines. The metre is trochaic. The poem describes the day of judgment, the last trumpet summoning souls before the throne of God, where the saved will be delivered and the unsaved cast into eternal flames.

The hymn is best known from its use as a sequence in the Roman Catholic Requiem mass (Mass for the Dead or Funeral Mass). An English version is found in various Anglican Communion missals.