19:4 John verily baptized. His baptism was (1) of Repentance; (2) of Faith in a coming Savior. Christian baptism is (1) of Repentance; (2) of Faith in a Savior that has come, died, risen, and been exalted to the heavens; (3) is into the name of the Father, and the Son, and the Holy Spirit; (4) enjoys not only the promise of remission of sins, but of the gift of the Holy Spirit.
19:4 John baptized - That is, the whole baptism and preaching of John pointed at Christ. After this John is mentioned no more in the New Testament. Here he gives way to Christ altogether.
19:1-7 Paul, at Ephesus, found some religious persons, who looked to Jesus as the Messiah. They had not been led to expect the miraculous powers of the Holy Ghost, nor were they informed that the gospel was especially the ministration of the Spirit. But they spake as ready to welcome the notice of it. Paul shows them that John never design that those he baptized should rest there, but told them that they should believe on Him who should come after him, that is, on Christ Jesus. They thankfully accepted the discovery, and were baptized in the name of the Lord Jesus. The Holy Ghost came upon them in a surprising, overpowering manner; they spake with tongues, and prophesied, as the apostles and the first Gentile coverts did. Though we do not now expect miraculous powers, yet all who profess to be disciples of Christ, should be called on to examine whether they have received the seal of the Holy Ghost, in his sanctifying influences, to the sincerity of their faith. Many seem not to have heard that there is a Holy Ghost, and many deem all that is spoken concerning his graces and comforts, to be delusion. Of such it may properly be inquired, Unto what, then, were ye baptized? for they evidently know not the meaning of that outward sign on which they place great dependence.