Heidelberg Catechism – Lord’s Day 28
Q. How are you reminded and assured in the Holy Supper that you participate in the one sacrifice of Christ on the cross and in all his benefits?
A. In this way: Christ has commanded me and all believers to eat of this broken bread, and to drink of this cup in remembrance of him. He has thereby promised that his body was offered and broken on the cross for me, and his blood was shed for me, as surely as I see with my eyes that the bread of the Lord is broken for me, and that the cup is shared with me. Also, he has promised that he himself as certainly feeds and nourishes my soul to everlasting life with his crucified body and shed blood as I receive from the hand of the minister and actually taste the bread and the cup of the Lord which are given to me as sure signs of the body and blood of Christ.
Q. What does it mean to eat the crucified body of Christ and to drink his shed blood?
A. It is not only to embrace with a trusting heart the whole passion and death of Christ, and by it to receive the forgiveness of sins and eternal life. In addition, it is to be so united more and more to his blessed body by the Holy Spirit dwelling both in Christ and in us that blessed body by the Holy Spirit dwelling both in Christ and in us that, although he is in heaven and we are on earth, we are nevertheless flesh of his flesh and bone of his bone, always living and being governed by one Spirit, as the members of our bodies are governed by one soul.
Q. Where has Christ promised that he will feed and nourish believers with his body and blood just as surely as they eat of this broken bread and drink of this cup?
A. In the institution of the holy Supper which reads: The Lord Jesus on the night when he was betrayed took bread, and when he had given thanks, he broke it, and said, “this is my body which is for you. Do this in remembrance of me.” In the same way also the cup, after supper, saying, “this cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me.” For as often as you eat this bread and drink the cup, you proclaim the Lord’s death until he comes.
This promise is also repeated by the apostle Paul: When we bless “the cup of blessing,” is it not a means of sharing in the blood of Christ” When we break the bread, is it not a means of sharing the body of Christ? Because there is one loaf, we, many as we are, are one body, for it is one loaf of which we all partake.