77. Where has Christ promised, that He will thus feed and nourish believers with His body and blood, as certainly as they eat of this broken bread and drink of this cup?
In the institution of the Supper, which says: “The Lord Jesus the same night in which He was betrayed took bread: and when He had given thanks, He broke it, and said, Take eat: this is my body, which is broken for you: this do in remembrance of me. After the same manner also He took the cup, when He had eaten, saying, This cup is the New Covenant in my blood: this do, as often as you drink it, in remembrance of me. For as often as you eat this bread and drink this cup, you show the Lord’s death till He come” (1 Cor 11:23–25). And this promise is also repeated by St. Paul, where he says: “The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ? For we being many are one bread, and one body: for we are all partakers of that one bread” (1 Cor 10:16–17). (Heidelberg Catechism 77)

Our home away from home for the summer of 1986

Don Treick at graduation 1987
What does this all have to do with Heidelberg 77? Everything. We confess what we do about the promises and realities of the Holy Supper because they are biblical. In Holy Scripture (in the gospels and in 1 Corinthians) the Holy Spirit has preserved for us our Lord’s institution of the Holy Supper. We know nothing of a secret, unwritten apostolic tradition because it does not exist. When the early Christian fathers appealed to apostolic tradition, they referred to public teaching and practices handed down in Scripture. That talk of tradition was gradually transformed into an allegedly secret, unwritten tradition. Late medieval and today all Romanist Christians are asked to place implicit faith in the Roman communion, in her officers (e.g., the Pope), in her councils, and in her alleged apostolic traditions. The Reformed Churches believe in implicit faith (fides implicita) but we place it in holy Scripture. Implicit faith is impossible for mere mortals to avoid. None of us knows everything about anything. We always rely on some authority, somewhere. That reliance is implicit faith. We do not know but we trust that someone else knows. Rome asks us to trust her implicitly. As a church historian I say that’s bad advice. That certainly is not how the earliest fathers regarded the church. They put their implicit faith in Scripture. They, as we, understood that the Word (Scripture) forms the church. The Word is the canon of the church and not the other way round. Thus, we ought to trust Scripture implicitly. Yes, there are difficult places is in Scripture. Who knows what Paul meant by “baptism for the dead” in 1 Corinthians 15? I do not know and I do not know anyone else who knows but Paul knew what he meant and God knows what he meant and perhaps one day we shall find out. In the meantime I am content to trust God’s Holy, inerrant word. Popes and councils err but Holy Scripture does not. Holy Scripture has never lied to us. It has never manipulated us or the facts to suit an agenda. That’s not true with popes and councils. One year Vatican II is great. The next year Vatican II is not as much in favor and, wait for it, after a while, with a new pope, Vatican II is back in style again. By contrast, Scripture has always always told us the truth, the whole truth, and nothing but the truth about God’s holy law and his holy gospel.
Thus, when we are determining what we ought to believe about the promises of the gospel contained in, represented by, and sealed by the Holy Supper we go only to God’s inerrant, infallible Word. How do I know that Christ has made such wonderful promises to believers in the Supper? I know it from Holy Scripture. The same Holy Spirit who operates through the Supper to strengthen our union and communion with Christ also gave us the gospel and epistle records of its institution. That same Spirit operates through the Supper to renew our assurance and to draw us back to Christ and to his promises (and away from ourselves, our doubts, and our fears). How do I know the Supper is what it is? It’s in the Bible. How do I know the Bible is true? The Holy Spirit testifies to and through Scripture that it’s true. There’s further confirmation in history. Is the tomb empty? Yes. Were there witnesses? Yes, hundreds of them. It’s all true and it’s true for us, in particular, who believe. Just as certainly as we eat and drink so certainly are the gospel promises for us. As Don says, “It’s in the Bible.”