6. I further believe and confess a Christian baptism, according to the import of the word of God, as Christ commanded his apostles, saying: Go and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: teaching them to observe all things whatsoever I have commanded you. Matt. 28:19,20. And Mark 16:15,16: Go ye into all the world, and preach the gospel to every creature. He that believeth and is baptized shall be saved; but he that believeth not shall be damned. Thus the apostles did according to the command of their Lord; for on the day of Pentecost Peter opened his mouth, and taught the people of Jerusalem, and reproved them of their sins, so that they said: Men and brethren, what shall we do? Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost. For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call. Acts 2:37–39.
Hereby the apostle proves, that the gift of the Holy Ghost should be given not only to the Jews and their children, but also to the Gentiles, who were far from the kingdom of God, but whom God should also call to it, as the prophet Joel had foretold, that God in the latter days should pour out his Spirit upon all flesh. Joel 2:28. Hence God poured out the Holy Spirit upon the Gentile Cornelius and his household (Acts 10:44), in order to convince Peter and his [other] apostles, that he had given power to all men by faith, to become children of God; for with such he would establish his covenant. Hence Peter commanded; that they should be baptized in the name of the Lord; for they had been baptized by Christ with the Holy Ghost and with fire; by which Holy Ghost he purged their hearts from dead works, to serve the living God. Hence Peter said to those of Jerusalem: Repent and be baptized every one of you in the name of Jesus Christ for the remission of sins. Not as though sin could be forgiven through baptism, as may be seen in the case of Simon the sorcerer, who had also been baptized by Philip, but Peter said that he should have neither part nor lot in this matter. Acts 8:21. But they are cleansed from sin through faith in Christ Jesus, in whose name they receive baptism; hence baptism is a sign by which something better is signified; therefore it must be received upon or through faith, for Peter says: “The like figure whereunto even baptism doth also now save us, (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,) by the resurrection of Jesus Christ: who is gone into heaven, and is on the right hand of God.” 1 Peter 3:21,22. Therefore Philip, according to the command of Christ, first taught those of Samaria, before they received baptism. Also many Corinthians that heard it, believed and were baptized. Thus baptism must be received upon faith, for the burying of sin (Rom. 6:4), for a washing of regeneration (Tit. 3:5), for a covenant of the Christian life, for a putting on of the body of Christ, for an ingrafting into the true olive tree and vine Christ, for an entrance into the spiritual ark of Noah (1 Peter 3:20), of which Christ is the true householder, as is written concerning him: behold I and the children which God hath given me. Heb. 2:13. And Isaiah calls him, The mighty God, The everlasting Father, The Prince of Peace. Is. 9:6. Thus they are baptized by Christ inwardly with the Holy Ghost and with fire, outwardly with water, as the eunuch said: “Here is water; what doth hinder me to be baptized? And Philip said, If thou believest with all thine heart, thou mayest. And he answered and said, I believe that Jesus Christ is the Son of God.” Acts 8:36,37.