"Good Friday is the birth of the Church from the pierced side of Jesus.... On the altar of the Cross, the sharing of the broken bread and the common cup at the table of the Last Supper received its full meaning as Supper of the Lamb slain for our redemption. The cross that marks the place of the Eucharist will always call attention to the awesome mystery of Calvary."
January 1, 1970
https://en.wikiquote.org/wiki/Eucharist