The collect for today, Maundy Thursday (source):

Almighty Father, whose dear Son, on the night before he suffered, instituted the Sacrament of his Body and Blood: Mercifully grant that we may receive it thankfully in remembrance of Jesus Christ our Lord, who in these holy mysteries gives us a pledge of eternal life; and who now lives and reigns with you and the Holy Spirit, one God, for ever and ever. Amen.

The Epistle: 1 Corinthians 11:23-32
The Gospel: St Luke 22:14-30

Click for larger view

Artwork: Fra Angelico, Communion of the Apostles (Armadio degli Argenti paintings), 1451-53. Tempera on wood, Museo di San Marco, Florence.