What festival does the Church celebrate today? The Catholic Church commemorates today the institution, by our Saviour, of the Holy Sacrifice of the Mass, and the Most Blessed Sacrament of the Altar. This commemoration she has celebrated from the first ages of Christianity. What remarkable things did Christ perform on this day? He ate with His apostles the Paschal lamb which was a type of Himself; it was eaten with bitter herbs and unleavened bread; they ate it standing with clothes girded, and staff in hand, in remembrance of the hurried escape of the Jews from Egypt. (Exod. XII.) After...