Atos 19

Atos 19:5

Did he baptize after a heretic had baptized? Or, if perhaps you dare to say that the friend of the bridegroom was a heretic and was not in the unity of the church, I wish you would write that also. But, if it is complete madness either to think or to say that, then it is the duty of your prudence to reflect on the reason why the apostle Paul baptized after John. If he baptized after an equal, all of you ought to baptize after yourselves; if after a superior, you ought to baptize after Rogatus; if after an inferior, Rogatus should have baptized after you, because you baptized as a priest. On the other hand, if the baptism that is now given is equally valid to those who receive it in spite of the unequal merit of those who give it, because it is the baptism of Christ, not of those by whom it is administered, I think you now understand that Paul gave to some the baptism of Christ for the reason that they had received the baptism of John but not that of Christ. — LETTER 93