LORD’S DAY 31 83. What is the Office of the Keys? The preaching of the holy gospel and Christian discipline; by these two the kingdom of heaven is opened to believers and shut against unbelievers. 84. How is the kingdom of heaven opened and shut by the preaching of the Holy Gospel? In this way:

LORD’S DAY 30 80. What difference is there between the Lord’s Supper and the popish Mass? 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 once accomplished on the cross; and that by the Holy Spirit we are ingrafted

LORD’S DAY 29 78. Do then the bread and the wine become the real body and blood of Christ? No, but as the water in baptism is not changed into the blood of Christ, nor becomes the washing away of sins itself, being only the divine token and assurance thereof; so also in the Lord’s

OF THE HOLY SUPPER OF OUR LORD JESUS CHRIST LORD’S DAY 28 75. How is it signified and sealed to you in the Holy Supper that you partake of the one sacrifice of Christ on the cross and all His benefits? Thus: that Christ has commanded me and all believers to eat of this broken