And when Jesus was come into Peter’s house. — St. Mark (Mark 1:29) and St. Luke (Luke 4:38) relate more specifically that it was on the Sabbath, and that our Lord had previously taught in the synagogue and healed a demoniac. The sons of Zebedee and of Jona had all been present, and when the service was over they came to the house in which Peter apparently (though born in Bethsaida, John 1:44) had settled on his marriage.
His wife’s mother. — The fact of St. Peter’s marriage has not unnaturally been almost unduly prominent in the Protestant argument against the enforced celibacy of the clergy. “Here,” it has been said, “is the Apostle from whom the Bishop of Rome claims succession, married when called to his office, and never separated from his wife, and yet Rome declares the marriage of priests to be unlawful, and stigmatises it as worse than concubinage.” Telling as it may sound, however, it is after all only an argumentum ad hominem. Had the case been otherwise, we should not have admitted that the celibacy of the chief of the Apostles was a ground for compelling all bishops, elders, and deacons of the Church to follow his example. And all that can be urged, as the case stands, is that there is an inconsistency in accepting these facts, and yet treating marriage as incompatible with the sacred office of the ministry. The Church of Rome might answer, that experience, or the teaching of the Spirit, or the moral authority of the saints and Fathers of the Church, outweighed the inference from St. Peter’s example, and the question must be discussed on wider ethical and social, as well as Scriptural, grounds. In that argument, it is believed, those who advocate Christian liberty (1 Corinthians 9:5) as most in harmony with the mind of Christ are not likely to get the worst of it.
Sick of a fever. — St. Luke, with a kind of medical precision, adds, “with a great fever,” and that they (Peter, John, and the others) asked Him about her, as if consulting about a case of which they almost despaired.