1Pet 2, 6-8 I am laying a cornerstone chosen precious

(1Pet 2, 6-8) I am laying a cornerstone chosen precious

[6] For it says in scripture: "Behold, I am laying a stone in Zion, a cornerstone, chosen and precious, and whoever believes in it shall not be put to shame." [7] Therefore, its value is for you who have faith, but for those without faith: "The stone which the builders rejected has become the cornerstone," [8] and "A stone that will make people stumble, and a rock that will make them fall." They stumble by disobeying the word, as is their destiny.

(CCC 805) The Church is the Body of Christ. Through the Spirit and his action in the sacraments, above all the Eucharist, Christ, who once was dead and is now risen, establishes the community of believers as his own Body. (CCC 832) "The Church of Christ is really present in all legitimately organized local groups of the faithful, which, in so far as they are united to their pastors, are also quite appropriately called Churches in the New Testament.... In them the faithful are gathered together through the preaching of the Gospel of Christ, and the mystery of the Lord's Supper is celebrated.... In these communities, though they may often be small and poor, or existing in the diaspora, Christ is present, through whose power and influence the One, Holy, Catholic, and Apostolic Church is constituted" (LG 26). (CCC 833) The phrase "particular church," which is the diocese (or eparchy), refers to a community of the Christian faithful in communion of faith and sacraments with their bishop ordained in apostolic succession (Cf. CD 11; CIC, cann. 368-369; CCEO, cann. 177,1; 178; 311, 1; 312). These particular Churches "are constituted after the model of the universal Church; it is in these and formed out of them that the one and unique Catholic Church exists" (LG 23). (CCC 602) Consequently, St. Peter can formulate the apostolic faith in the divine plan of salvation in this way: "You were ransomed from the futile ways inherited from your fathers... with the precious blood of Christ, like that of a lamb without blemish or spot. He was destined before the foundation of the world but was made manifest at the end of the times for your sake" (1 Pet 1:18-20). Man's sins, following on original sin, are punishable by death (Cf. Rom 5:12; 1 Cor 15:56). By sending his own Son in the form of a slave, in the form of a fallen humanity, on account of sin, God "made him to be sin who knew no sin, so that in him we might become the righteousness of God" (2 Cor 5:21; cf. Phil 2:7; Rom 8:3).