The "Church", however, is NOT the Roman Catholic church but the universal one, sanctified body of Jesus Christ, His Bride - where all genuine believers in Christ are like living stones, being built into a spiritual house to be a holy priesthood, offering spiritual sacrifices acceptable to God through Jesus Christ.
Any time you try to assert that "your" denomination is "THE" church outside of which NO ONE can be saved, you are practicing elitist, erroneous, religious snobbery that has no support from God. His holy word tells us this. The journey to heaven is through faith in Jesus Christ - who died for our sins and was raised for our justification.
You are entitled to believe in Luther’s, Calvin’s or any other church founded by man, but I believe in the Catholic Church founded by Jesus Christ as taught by the apostles and their successors. All are welcome to find the Truth in the Catholic Church.
I am glad that you believe in Jesus Christ, even if one does not believe in all of the teachings of Jesus. I am glad that many try to follow God and do His will and avoid evil. I have never said that anyone who was not a member of the Catholic Church could not be saved. That is a decision made by Jesus on all of us upon one’s death.
I believe in the Catholic Church founded by Jesus Christ and imbued with the Holy Spirit as stated in the Nicene Creed.
Christ’s Last Commission
Some important lessons follow from the consideration of the final commission of our blessed Lord:
All power is given to me in heaven and in earth. Going therefore teach ye all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost. Teaching them to observe all things whatsoever I have commanded you. And behold I am with you all days, even to the consummation of the world. (Matt. 28:18)
Note first of all that Christ claims universal kingship. In the light of that see the force of therefore. It is because Christ is king that the apostles are going out to teach all nations. See then the significance of the fourfold all: “all power,” “all nations,” “all things,” and “all days.” There could hardly be a more cogent statement of the universality of the Church throughout all ages and throughout the world. Moreover it is a visible Church because only a visible Church can teach and be taught. There is, too, that final statement of our blessed Lord’s perpetual presence in his Church, something he had already emphasized several times in his discourse after the Last Supper. It follows that this Church must be one.
The rest of the article: https://www.catholic.com/magazine/print-edition/christs-visible-church
There is no mention in the New Testament nor any suggestion that Christ founded a plurality of churches. The parallels used to describe the Church reinforce the idea of strict unity. It is to be a household, a sheepfold, a flock. Our Lord declared specifically: “Other sheep I have that are not of this fold; them also I must bring, and they shall hear my voice, and there shall be one fold and one shepherd” (John 10:16). In this quotation the Greek refers both to one fold and to one flock. He had also given a warning against divisions: “Every kingdom divided against itself shall be made desolate, and every city or house divided against itself shall not stand” (Matt. 12:25). . . .
I believe one of the characteristics of a cult, is that it’s members claim that their “religion,” is the only one, and they, with their haughty, self righteousness, have a lock on the truth. There are quite a few “religions” that claim to be the only true church. There are 3 of them, right here, where I live, all claiming, they are the ONLY true church. I don’t accept ANY of them.