When Simon saw that the Spirit was given through the laying on of the apostles’ hands, he offered them money.
18. And when Simon. Simon’s hypocrisy is now discovered, not because that he had feigned before that he believed; for when he was convicted he gave Christ his hand in earnest, like as many yield unto the gospel, lest they strive against God, but in the mean season they continue like to themselves; whereas the denial of ourselves ought to follow true faith.
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
Saying, give me also this power,.... He does not ask them to lay their hands on him, that he might receive the Holy Ghost, and have these gifts to exercise himself, but that he might have the power of conferring them on others: that on whomsoever I lay hands, he may receive the Holy Ghost; in which he discovered his ambition and avarice: his ambition...