Lord's Day 30

The Lord's Supper testifies to us that we have full forgiveness of all our sins through the one sacrifice of Jesus Christ, which he himself accomplished on the cross once for all; and that through the Holy Spirit we are grafted into Christ, who with his true body is now in heaven at the right hand of the Father, and that we are there to be worshipped. But the mass teaches that the living and the dead do not have forgiveness of sins through the suffering of Christ, unless Christ is again offered for them daily by the priest, and that Christ is bodily present under the form of bread and wine, and there to be worshipped. Therefore the mass is basically nothing but a denial of the one sacrifice and suffering of Jesus Christ, and an accursed idolatry.

Those who are truly displeased with themselves because of their sins and yet trust that these are forgiven them, and that their remaining weakness is covered by the suffering and death of Christ, and who also desire more and more to strengthen their faith and amend their life. The hypocrites and those who do not repent, however, eat and drink judgment upon themselves.

No. Thereby the covenant of God would be profaned and his wrath kindled against the whole congregation. Therefore, according to the command of Christ and his apostles, the Christian church is duty-bound to exclude such persons by the office of the keys, until they amend their lives.