16:13-20 Peter, for himself and his brethren, said that they were assured of our Lord's being the promised Messiah, the Son of the living God. This showed that they believed Jesus to be more than man. Our Lord declared Peter to be blessed, as the teaching of God made him differ from his unbelieving countrymen. Christ added that he had named him Peter, in allusion to his stability or firmness in professing the truth. The word translated rock, is not the same word as Peter, but is of a similar meaning. Nothing can be more wrong than to suppose that Christ meant the person of Peter was the rock. Without doubt Christ himself is the Rock, the tried foundation of the church; and woe to him that attempts to lay any other! Peter's confession is this rock as to doctrine. If Jesus be not the Christ, those that own him are not of the church, but deceivers and deceived. Our Lord next declared the authority with which Peter would be invested. He spoke in the name of his brethren, and this related to them as well as to him. They had no certain knowledge of the characters of men, and were liable to mistakes and sins in their own conduct; but they were kept from error in stating the way of acceptance and salvation, the rule of obedience, the believer's character and experience, and the final doom of unbelievers and hypocrites. In such matters their decision was right, and it was confirmed in heaven. But all pretensions of any man, either to absolve or retain men's sins, are blasphemous and absurd. None can forgive sins but God only. And this binding and loosing, in the common language of the Jews, signified to forbid and to allow, or to teach what is lawful or unlawful.

19. And I will give unto thee the keys of the kingdom of heaven—the kingdom of God about to be set up on earth

and whatsoever thou shalt bind on earth shall be bound in heaven: and whatsoever thou shalt loose on earth shall be loosed in heaven—Whatever this mean, it was soon expressly extended to all the apostles (Mt 18:18); so that the claim of supreme authority in the Church, made for Peter by the Church of Rome, and then arrogated to themselves by the popes as the legitimate successors of St. Peter, is baseless and impudent. As first in confessing Christ, Peter got this commission before the rest; and with these "keys," on the day of Pentecost, he first "opened the door of faith" to the Jews, and then, in the person of Cornelius, he was honored to do the same to the Gentiles. Hence, in the lists of the apostles, Peter is always first named. See on [1318]Mt 18:18. One thing is clear, that not in all the New Testament is there the vestige of any authority either claimed or exercised by Peter, or conceded to him, above the rest of the apostles—a thing conclusive against the Romish claims in behalf of that apostle.