Small Catechism for Memorizing - Trinity VIII (July 13)

How can bodily eating and drinking do such great things?

Certainly not just eating and drinking do these things, but the words written here: “Given and shed for you for the forgiveness of sins.” These words, along with the bodily eating and drinking, are the main thing in the sacrament. Whoever believes these words has exactly what they say: “forgiveness of sins.”