John Chrysostom
Catena Aurea · Matthäusevangelium 16
When Jesus came into the coasts of Cæsarea Philippi, he asked his disciples, saying, Whom do men say that I the Son of man am? And they said, Some say that thou art John the Baptist; some, Elias; and others, Jeremias, or one of the prophets. He saith unto them, But whom say ye that I am? And Simon Peter answered and said, Thou art the Christ, the Son of the living God. And Jesus answered and said unto him, Blessed art thou, Simon Barjona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven. And I say also unto thee, That thou art Peter, and upon this rock I will build my Church: and the gates of hell shall not prevail against it. And I will give unto thee the keys of the kingdom of heaven: and whatsoever thou shalt bind on earth shall be bound in heaven: and whatsoever thou shalt loose on earth shall be loosed in heaven.
And truly if Peter had not confessed that Christ was in a peculiar sense born of the Father, there had been no need of revelation; nor would he have been worthy of this blessing for confessing Christ to be one of many adopted sons; for before this they who were with Him in the ship had said, Truly thou art the Son of God. (John 1:49.) Nathanael also said, Rabbi, thou art the Son of God. Yet were not these blessed because they did not confess such sonship as does Peter here, but thought Him one among many, not in the true sense a son; or, if chief above all, yet not the substance of the Father. But see how the Father reveals the Son, and the Son the Father; from none other comes it to confess the Son than of the Father, and from none other to confess the Father than of the Son; so that from this place even it is manifest that the Son is of the same substance, and to be worshipped together with the Father. Christ then proceeds to shew that many would hereafter believe what Peter had now confessed, whence He adds, And I say unto thee, that thou art Peter,