하이델베르크 교리문답 (1563년)

The Lord's Supper testifies to us that we have full forgiveness of all our sins by the one sacrifice of Jesus Christ, which He Himself has once accomplished on the cross; [and that by the Holy Ghost we are ingrafted into Christ, who with His true body is now in heaven at the right hand of the Father, and is to be there worshiped]. But the Mass teaches that the living and the dead have not forgiveness of sins through the sufferings of Christ unless Christ is still daily offered for them by the priests; [and that Christ is bodily under the form of bread and wine, and is therefore to be worshiped in them]. And thus the Mass at bottom is nothing else than a denial of the one sacrifice and passion of Jesus Christ [and an accursed idolatry].)

Those who are displeased with themselves for their sins, yet trust that these are forgiven them, and that their remaining infirmity is covered by the passion and death of Christ; who also desire more and more to strengthen their faith and amend their life. But the impenitent and hypocrites eat and drink judgment to themselves.

No; for by this the covenant of God is profaned, and His wrath provoked against the whole congregation; wherefore the Christian Church is bound, according to the order of Christ and His Apostles, by the office of the keys to exclude such person until they amend their life.