Acts 11:16

And I remembered the word of the Lord, how he said, John indeed baptized with water; but ye shall be baptized in the Holy Spirit.

The fact that this remark about baptism was also made by John the Baptist (Mark 1:8 and parallels) is no reason at all for denying that Jesus also made it as proved by this verse and Acts 1:5. Both John the Baptist who baptized in water and the Lord Jesus who baptized in the Holy Spirit found occasion to mention the contrast; and MacGregor's denial of this in his unsupported assertion that "The words are put on Jesus' lips"[16] (by Luke) is pedantry. Like many other so-called "liberal" comments on the New Testament, this one is extremely pedestrian. If Luke had recorded John the Baptist as saying this, the critic would have accused him of copying Mark; but, as Luke quoted Peter's remembrance of Jesus saying it, he insinuated that Luke invented this. This is exactly the type of criticism that has about succeeded in destroying the credibility of liberalism, as applied to Biblical exegesis. Bible students quickly learn to anticipate exactly the knee-jerk reactions which have come to take the place of thought in the study of the word of God.