Scripture: Deuteronomy 12:27;Hebrews 7:25;1 Corinthians 10:16, Today's teaching, beginning on page 108 of our book, contrasts the Lutheran view of the Lord's Supper (4 elements present: e.g. Sacramental Union) with the doctrinal view of the Roman Catholics (2 elements: e.g. Transubstantiation). Sacrifice of the Mass is discussed including the key question "Sacrifice by Whom?"