Acts 10:47 - Ellicott's Commentary On The Whole Bible

Can any man forbid water... — The question was an appeal to the voice of reason. Could the outward sign be refused, when thus the inward and spiritual grace had been so manifestly bestowed? Ordinarily, as in the case of the Samaritans (Acts 8:15-17), the gift of spiritual powers followed, by the subsequent act of laying on of hands, on the grace given in baptism. Now even that gift had been anticipated, and all that remained was the outward act of incorporation with the society which owned Christ as its Head. While the history thus bore its witness that the gifts of God may flow through other channels than the outward forms which Christ had appointed, it testified no less clearly that no spiritual gifts, however marvellous, superseded the necessity of obedience to the law of Christ which had appointed those outward forms. The exceptional gift was bestowed, in this instance, to remove the scruples which “those of the circumcision” might otherwise have felt as to admitting Gentiles, as such, to baptism; and having served that purpose, as a crucial instance, was never afterwards, so far as we know, repeated under like conditions.