I also tell you that you are Peter, and on this rock I will build my church, and the powers of hell will not be able to overcome it.
Jesus gives Peter a deeply significant promise, linking the building of the church not to a person, but to the confession of faith he has spoken. The name “Peter” (Greek: Πέτρος) means stone, while the word “rock” (Greek: πέτρα) points to a firm, immovable cliff. According to the majority of commentators, the “rock” Jesus refers to is precisely Peter’s true confession—the faith by which Jesus is recognized as the Messiah and the Son of God. Thus, the foundation of the church is not a human being, but the content of faith: the knowledge of Christ. “Church” is mentioned here for the first time in the Gospel, as the living community of believers, which Jesus Himself will build and preserve. The “gates of hell” symbolize all the powers of death, darkness, and evil, yet the Lord assures that they can never overcome His church, because it is founded on a living, true, and indestructible faith.