Now, however, directly from Phrygia, after passing through Proconsular Asia with preaching, he arrived in Ephesus and remained there for a long time; verse 10. “Finding there certain disciples.” By the name disciples the writer of Acts usually means disciples of Christ, that is, Christians. Judging by everything, these disciples also belonged to the number of Christians. Yet what follows shows that these disciples had been baptized only into John’s baptism. Therefore the writer of Acts calls them disciples, that is, Christians, only in a broader sense. They were probably Jews, for nowhere is it evident that there were disciples of John among the Gentiles. They were probably newcomers, and recent ones, to Ephesus. On arriving there, they attached themselves to the still small Christian community in Ephesus. They believed in the coming Messiah preached by the Baptist, but did not have a full understanding of Him. In this they were like Apollos for a time. They had not yet managed, or had not been able, to be instructed more accurately in the way of the Lord; Acts 18:25-26. Where and by whom they had been baptized into John’s baptism is unknown. How they became disciples of John is also unknown. But in Ephesus they kept to the Christian community, so that Paul himself at first considered them Christians; verse 2, “when you believed.” Only through conversation and dealings with them did he learn that they were merely disciples of John. From conversation and contact with them, Paul noticed in them a lack of the pure Christian spirit in life. He also saw the incompleteness of their knowledge of the way of the Lord; compare Acts 18:26. As is evident, he was amazed by this and wondered what it meant. Hence precisely this question to them.