Q. 99. Wherein do Baptism and the Lord’s Supper differ from the other ordinances of God?
A. Baptism and the Lord’s Supper differ from the other ordinances of God in that they were specially instituted by Christ to represent and apply to believers the benefits of the new covenant by visible and outward signs.
Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, Matthew 28:19
And now why do you wait? Rise and be baptized and wash away your sins, calling on his name. Acts 22:16
Now as they were eating, Jesus took bread, and after blessing it broke it and gave it to the disciples, and said, “Take, eat; this is my body.” And he took a cup, and when he had given thanks he gave it to them, saying, “Drink of it, all of you, for this is my blood of the covenant, which is poured out for many for the forgiveness of sins.
We were buried therefore with him by baptism into death, in order that, just as Christ was raised from the dead by the glory of the Father, we too might walk in newness of life. Romans 6:4