When we reflect that the first act of our Lord to Peter was to look upon him, and to promise him this name, a token of His omnipotence to Simon yet knowing him not, as that seeing him under the fig-tree was to Nathaniel of His omniscience; and that when He chose His twelve apostles, it is said markedly "to Simon He gave the name of Peter," the force of His reply cannot well be exceeded. The promise of our Lord answers part by part to the confession of His apostle. The one says: "Thou art the Christ," that is, the anointed one; the other, "Thou art Peter," that is, the Rock, the name which I gave thee myself: my own title with which I invested thee. The one adds, "the Son of the living God;" the other, "And upon this rock I will build my Church," that is, as it is true what thou confessest, that I am "the Son of the living God," so my power as such shall be shown in building my Church upon thee whom I have long named the Rock, "and the gates of hell shall not prevail against it." Not only this, but I will unfold to thee the full meaning of thy name, and declare the gifts which accompany it. "And[23] I will give to thee the keys of the kingdom of heaven." That is, "The root and the offspring of David," "the holy one and the true one, He that hath the key of David; He that openeth and no man shutteth; shutteth and no man openeth;" as He gave to thee to share His name of the Rock, so He shall give to thee to bear in His name His own symbol of supreme dominion, the key which opens or shuts the true city of David; all ages shall own thee, all nations acknowledge thee, as _The Bearer of the Keys_; as long as my Church shall last, against which the gates of hell shall not prevail, thy office shall last too; as long as there are souls to be saved, they shall pass by thy ministry into the gate of the Church. And further, as long as there need in my spiritual kingdom laws to be promulgated, precepts issued, sins forgiven, "whatsoever thou shalt bind upon earth, it shall be bound also in heaven; and whatsoever thou shalt loose on earth, it shall be loosed also in heaven."