It is shown by these words: "Given and shed for you, for the remission of sins;" namely, that in the sacrament forgiveness of sins, life, and salvation are given us through these words. For where there is forgiveness of sins, there is also life and salvation.
How can bodily eating and drinking do such great things?
It is not the eating and drinking, indeed, that does it, but the words which stand here: "Given and shed for you, for the remission of sins." These words, together with the bodily eating and drinking, are the chief thing in the sacrament; and He that believes these words, has what they say and mean, namely, the forgiveness of sins.
Who, then, receive this sacrament worthily?
Fasting and bodily preparation are indeed a good outward practise;
But he alone is truly worthy and well prepared, who believes these words: "Given and shed for you, for the remission of sins."
But he who believes not these words is unworthy and unprepared. The words, "for you" require truly believing hearts.