These citations do not only support our position, but also show that the framers of the Confession and our forefathers, did not believe that baptism functioned as a seal of the New Covenant. There is only one seal of the New Covenant and that is the Blessed Spirit.
See here in chapter 7 for a little more on this passage.
Conclusion On Signs And Seal
The New Covenant has two signs, baptism and the Lord’s Supper. The seal of the New Covenant is the third Person of the Blessed Trinity, the Holy Spirit. A sign is something visible which signifies the realities of the covenant, while a seal is a stamp of ownership and protection.
Not Necessary For Salvation
Almost always, when generally speaking of baptism, the question has to be answered concerning the connection between water baptism and salvation. Is water baptism necessary for salvation? Does an unbaptized person get to heaven? Are the sins of an unbaptized person forgiven? The “person” of whom we are speaking in this connection is a believer. He believes that Jesus Christ died on the cross to take his sins away and through faith in Christ, he is justified before God on the basis of Christ’s work alone. There are groups, which I consider heretical because they teach that baptism is necessary for salvation. They are basically saying that faith alone is not enough to save, but something else must be coupled with that faith for the person to be saved, and that thing is water baptism. This turns salvation into a works system, even if the thing to be done is nothing great. There are several texts which, when read in isolation from the rest of the Bible, seem to teach that baptism is necessary for salvation. We will look at a few of these texts below, but first, let’s see why baptism is not necessary for salvation.
Let us first begin with the biblical doctrine of salvation by grace and through faith alone (e.g., Eph. 2:8-9). Justification is by faith alone (e.g., Rom. 3:21). Baptism is a deed of faith, but it is not faith. It is something which the regenerate heart would want to do in obedience to their Lord, but not a thing/deed which “activates” the fruits of faith (forgiveness, justification). See chapter 11 for more on justification by faith alone. In every discussion of justification by the apostle Paul, baptism is never seen as a condition of justification or a prerequisite for the forgiveness of sins, but faith is everywhere the condition in such discussions. Faith is the empty hand where Christ, Who is our righteousness, is placed in. This is my fundamental presupposition.
The second reason is the obvious example of the thief on the cross. He expressed faith in Christ and he was assured by the words of Christ that he will be with Christ in Heaven (Luke 23:39-43). He expressed simple faith in Christ and asked Him to remember Him and Christ did not refuse this man. He did not require water baptism or anything else from him. His simple faith in Christ saved him. This is a clear example of a person going to heaven who was not baptized.
The third reason is that various people are said to have the Spirit before being water baptized. Paul was filled with the Holy Spirit prior to his baptism (Acts 9:17-18). The first Gentile converts to the Lord, first receive His Spirit and then water baptism (Acts 10:44-48). We recognize that there are instances where water baptism occurs first and then the giving of the Spirit, but these are special occasions peculiar to that time...