WATCH: HOLY THURSDAY | MASS OF THE LORD’S SUPPER: Welcome to Saint Mary Cathedral in Lansing for the Mass of the Lord’s Supper, Holy Thursday, April 17. This sacred liturgy commemorates the Last Supper of Jesus Christ with his disciples. It also stresses three aspects of that historical event: The institution of the Holy Eucharist; the institution of the ministerial priesthood; and the commandment of brotherly love that Jesus gave after washing the feet of his disciples. The principal celebrant this evening is the Most Reverend Earl Boyea, Bishop of Lansing.