Joseph Benson's Commentary of the Old and New Testaments - Acts 19:2-7
Acts 19:2-7. Having found certain disciples Who had been formerly baptized by John the Baptist, and since imperfectly instructed in Christianity, he said, Have ye received the Holy Ghost? The extraordinary gifts, as well as the sanctifying graces of the Holy Spirit; since ye believed These disciples were converts to the Christian faith, that is, they believed that Jesus was the Christ; but Paul inquires whether they had received the Holy Ghost, whose operations on the minds of men for... read more
Albert Barnes' Notes on the Whole Bible - Acts 19:5
When they heard this - When they heard what Paul had said respecting the nature of John’s baptism.They were baptized ... - As there is no other instance in the New Testament of any persons having been rebaptized, it has been made a question by some critics whether it was done here; and they have supposed that all this is the narrative of Luke respecting what took place under the ministry of John: to wit, that he told them to believe on Christ Jesus, and then baptized them in his name. But this... read more