From Dr. Luther as the leading teacher of the Augsburg Confession, any intelligent person can see the proper meaning of the Augsburg Confession on this article.
In addition to Christ's and St. Paul's expressions (the bread in the Supper is the body of Christ or the communion of the body of Christ), the following forms are also used: under the bread, with the bread, in the bread. With these words the papistic transubstantiation may be rejected and the sacramental union of the bread's unchanged essence and Christ's body may be shown. In the same way, the "the Word became flesh" show that the divine essence is not changed into the human nature. But the two natures, unchanged, are united. So in the Holy Supper the two substances, the bread and Christ's body, are present together in the Sacrament. This union is a sacramental union. The words of Christ's ("This is My body") are not a figurative, allegorical expression, but a unique expression. Justin says:
This we receive not as common bread and common drink. We receive them as Jesus Christ, our Savior, who through the Word of God became flesh. For the sake of our salvation He also had flesh and blood. So we believe that the food blessed by Him through the Word and prayer is the body and blood of our Lord Jesus Christ. (paragraphs 34-39)
Condensed from CONCORDIA: THE LUTHERAN CONFESSIONS, copyright 2005,2006 by Concordia Publishing House. Used by permission. All rights reserved. To purchase a copy of CONCORDIA, call 800-325-3040.