rcc isnt important but the church is. people mistakenly think that there is an earthly organization that is the one true church as if a collection of people, church structures, and "authority" designates that it is the "one true church" on earth. But, this is a wrong assumtion. The true church is not an earthly organization. It is not a series of buildings and ceremonies rooted in ancient tradition. Instead, the church is the body of true believers. The true church consists of those who are regenerate; that is, it consists of those who are "the called", the true Christians.
Rom. 1:6, "among whom you also are the called (klaytos) of Jesus Christ."1 Cor. 1:24, "but to those who are the called (klaytos), both Jews and Greeks, Christ the power of God and the wisdom of God."Jude 1, "Jude, a bond-servant of Jesus Christ, and brother of James, to those who are the called(klaytos), beloved in God the Father, and kept for Jesus Christ."Rev. 17:14, "These will wage war against the Lamb, and the Lamb will overcome them, because He is Lord of lords and King of kings, and those who are with Him are*the called (klaytos) and chosen (eklektos) and faithful."
The greek word "klaytos" means "call, invited, divinely selected and appointed."1 The Greek word of "church" is ekklesia and is formed from a compound of the word "ek" (out of) and "kaleo" (call). Therefore, the church is the "called out ones." "Eklektos" in Rev. 17:14 above means simply means "chosen" and comes from the verb "eklegomai" which means to choose, to choose out. Therefore, the church, the ekkesia, is the "called out ones."