Luke
Acts 8:15ESV·traditional attribution

who came down and prayed for them that they might receive the Holy Spirit,

John Calvin Reformed @genevareformer

15. They prayed. Undoubtedly they taught first, for we know that they were no dumb persons; but Luke passeth over that which was common to them and Philip, and declareth only what new thing the Samaritans had by their coming, to wit, that they had the Spirit given them then.

Matthew Henry Presbyterian @wholebiblehenry

God had wonderfully owned Philip in his work as an evangelist at Samaria, but he could do no more than an evangelist; there were some peculiar powers reserved to the apostles, for the keeping up of the dignity of their office, and here we have an account of what was done by two of them there - Peter and John.

Commenting on Acts 8:14-25

John Gill Reformed Baptist @doctorgill

(For as yet he was fallen upon none of them,.... They had received him as a spirit of illumination and sanctification, and as, a spirit of conversion and faith; they had been regenerated, enlightened, and sanctified by him; and were converted by him, and brought to believe in Christ, and live, by faith upon him; they were baptized believers, and no more; as yet, none...