Psalm 43 is the 43rd psalm of the Book of Psalms, known in the English King James Version as "Judge me, O God, and plead my cause against an ungodly nation". In the slightly different numbering system
Beginning of Psalm 43 in a German Kurfürstenbibel from 1768
Psalm 43 in Les Très Riches Heures du duc de Berry, Folio 61v - Psalm XLII (Vulgate) the Musée Condé, Chantilly.
The Introit is part of the opening of the liturgical celebration of the Eucharist for many Christian denominations. In its most complete version, it consists of an antiphon, psalm verse and Gloria Pat
A priest prays the Introit in St Gabriel's Church, Pimlico.