for John baptized with water, but you will be baptized with the Holy Spirit not many days from now.”
5. Because John truly Christ repeateth this unto his apostles out of John’s own words. For some part of them had heard that at John’s mouth, which the Evangelists report, “I truly baptize you with water, but he that cometh after me shall baptize you with the Holy Ghost, and with fire.” Now Christ pronounceth that they shall well perceive that that is true indeed which he said.
In these verses, I. Theophilus is put in mind, and we in him, of St. Luke's gospel, which it will be of use for us to cast an eye upon before we enter upon the study of this book, that we may not only see how this begins where that breaks off, but that, as in water face answers to face, so do the acts...
Commenting on Acts 1:1-5
For John truly baptized with water,.... Or "in water", as he himself says, Mat 3:11 John's baptism was water baptism, an immersion of persons in water: he was the first administrator of it, and therefore is here mentioned by name; and his, and the baptism of the Spirit, are opposed; for there were others, as the disciples of Christ, that baptized in water as well...