Tonight we begin the sacred Paschal Triduum with the Mass of the Lord's Supper. Liturgically, that Mass, the Solemn Good Friday Liturgy and the Easter Vigil form a single celebration of the Lord's Passion, Death and Resurrection, the highlight of the Church's year. There will be no dismissal at the end of Mass. Instead we shall walk a torch-lit path up to the Chapel of St Amand and St John the Baptist at Hendred House, where there will be watching until midnight before the Altar of Repose. There is something satisfying in the thought that the Blessed Sacrament will be taken to a medieval chapel where it has been honoured for over seven hundred years. Nice also to think, as we sing the Tantum Ergo, that St Thomas's hymn was new-minted when the chapel was built. But whether we celebrate in the grandest of cathedrals or the meanest of mission chapels, nothing can compare with the immense significance of what we are recalling tonight: the Lord's gift of himself in the Eucharist and the ordained priesthood, and the example of service he set in the washing of feet.