"you may even find yourselves fighting against God."

"So now I tell you, have nothing to do with these men, and let them go. For if this endeavor or this activity is of human origin, it will destroy itself. But if it comes from God, you will not be able to destroy them; you may even find yourselves fighting against God."

-- Acts 5:34-42

"The sole Church of Christ [is that] which our Savior, after his Resurrection, entrusted to Peter's pastoral care, commissioning him and the other apostles to extend and rule it. . . . This Church, constituted and organized as a society in the present world, subsists in (subsistit in) the Catholic Church, which is governed by the successor of Peter and by the bishops in communion with him."

The Second Vatican Council's Decree on Ecumenism explains: "For it is through Christ's Catholic Church alone, which is the universal help toward salvation, that the fullness of the means of salvation can be obtained. It was to the apostolic college alone, of which Peter is the head, that we believe that our Lord entrusted all the blessings of the New Covenant, in order to establish on earth the one Body of Christ into which all those should be fully incorporated who belong in any way to the People of God."

-- CCC 816

"What the soul is to the human body, the Holy Spirit is to the Body of Christ, which is the Church." "To this Spirit of Christ, as an invisible principle, is to be ascribed the fact that all the parts of the body are joined one with the other and with their exalted head; for the whole Spirit of Christ is in the head, the whole Spirit is in the body, and the whole Spirit is in each of the members." The Holy Spirit makes the Church "the temple of the living God":

Indeed, it is to the Church herself that the "Gift of God" has been entrusted. . . . In it is in her that communion with Christ has been deposited, that is to say: the Holy Spirit, the pledge of incorruptibility, the strengthening of our faith and the ladder of our ascent to God. . . . For where the Church is, there also is God's Spirit; where God's Spirit is, there is the Church and every grace.

-- CCC 797

(Art: Benjamin West: Paul persecuting the Church. Right panel of tryptich, study for window at St. Paul's Church, Birmingham.)