since ye believed? that is, in Christ; which is taking it for granted, that they had received the special grace of the Spirit of God; for this believing is to be understood of true, spiritual, special faith in Christ:

and they said unto him, we have not so much as heard whether there be any Holy Ghost; by which they could not mean the person of the Holy Ghost: for they must have known that there was such a divine person as the Holy Ghost, from the writings of the Old Testament, with which they were conversant: and from the ministry of John, into whose baptism they were baptized; who saw the Spirit of God descend on Jesus, and bore witness of it; and declared, that Christ who was to come after him, would baptize with the Holy Ghost: nor could they mean the special grace of the Spirit, which they themselves had received; but the extraordinary gifts of the Spirit of God, which they at present knew nothing of, and which were afterwards bestowed upon them: they knew that there were prophecies in the Old Testament, concerning the effusion of the Spirit in the last days, in the days of the Messiah; but they had not heard that these had had their accomplishment; they had heard nothing of the day of Pentecost, and of the pouring out of the Spirit upon the apostles then, nor of any instance of this kind since; they did not know that the Holy Ghost was yet, Joh 7:39 they knew he was promised, but not that he was given; the Ethiopic version, to avoid the difficulty of the text, renders it, "we have only heard that there was an Holy Ghost".

Ver. 3. And he said unto them, unto what then were ye baptized? &c. The apostle takes it for granted that they were baptized, since they were not only believers, but disciples; such as not only believed with the heart, but had made a profession of their faith, and were followers of Christ; but asks unto what they were baptized; either in whose name they were baptized, since Christian baptism was administered in the name of the Spirit, as well as in the name of the Father and of the Son; or what attended or followed their baptism, seeing sometimes the Holy Ghost fell upon persons, either before baptism, or at it, or after it:

and they said, unto John's baptism; some think they had never been baptized at all with water baptism, only had received the doctrine preached by John, concerning repentance and remission of sins, and so were baptized unto him, professing the same doctrine he did, just as the Israelites were baptized into Moses; others think they were baptized, but very wrongly, being baptized in the name of John, and not in the name of Jesus Christ; and so, as it was not Christian baptism they had submitted to, it was right to baptize them again: but neither of these are probable, for it is not likely that they should receive John's doctrine, and not his baptism; that they should be his disciples and followers, and not attend to the more distinguishing branch of his ministry; and it is still more unlikely that they should be baptized in his name, who preached Jesus Christ to his followers, and pointed out to them the Lamb of God, and declared him to be greater than he; it seems rather that they were baptized, and that they were baptized in the name of Christ, as John's disciples were, as the apostle affirms in the following words.

Ver. 4. Then said Paul, &c. In reply to their answer, understanding them that they were baptized by John, he takes it up, and gives an account of John's baptism: showing how agreeable it was, and that it was the same baptism with the baptism of Christ, being administered in his name:

John verily baptized with the baptism of repentance; which required repentance antecedent to it, and was a fruit and effect, and so an evidence of it:

saying unto the people; the people of the Jews, the common people, the multitude that attended on his ministry:

that they should believe on him, which should come after him, that is, on Jesus Christ; so that he preached faith in Christ, as well as repentance towards God; and made the one as well as the other a necessary prerequisite unto baptism; which shows, that his baptism and Christian baptism are the same.

Ver. 5. When they heard this, &c. That is, the people to whom John preached, his hearers; when they heard of the Messiah, and that Jesus was he, and that it became them to believe in him:

they were baptized in the name of the Lord Jesus; not the disciples that Paul found at Ephesus, but the hearers of John; for these are the words of the Apostle Paul, giving an account of John's baptism, and of the success of his ministry, showing, that his baptism was administered in the name of the Lord Jesus; and not the words of Luke the Evangelist, recording what followed upon his account of John's baptism; for then he would have made mention of the apostle's name, as he does in the next verse; and have said, when they heard this account, they were baptized by Paul in the name of the Lord Jesus: the historian reports two things, first what Paul said, which lies in Ac 19:4,5 then what he did, Ac 19:6 where he repeats his name, as was necessary; as that he laid his hands upon them, which was all that was needful to their receiving the extraordinary gifts of the Holy Ghost, having been already baptized in the name of the Lord Jesus: which sense is the more confirmed by the particles ~men~ and ~de~, which answer to one another in verses 4 and 5, and show the words to be a continuation of the apostle's speech, and not the words of the historian, which begin in the next verse. Beza's ancient copy adds, "for the remission of sins".

Ver. 6. And when Paul had laid his hands upon them, &c. They having been before baptized, not by him, but by John, or one of his disciples, in the name of the Lord Jesus; just as Peter and John laid their hands upon the believing Samaritans, who had been before baptized by Philip, Ac 8:14-17 and the same extraordinary effects followed:

the Holy Ghost came on them; in his extraordinary gifts, whose special grace they had before an experience of:

and they spake with tongues; with other tongues, or in other languages, which they had never learned, or had been used to, as the disciples did at the day of "Pentecost": and prophesied; preached, having an extraordinary gift at once, of explaining the prophecies of the Old Testament, and also foretold things to come.