Why the Church is Necessary for Salvation
The Church teaches that she is necessary for salvation. As the Catechism of the Catholic Church says, “all salvation comes from Christ the Head through the Church which is his Body” (CCC 846). Now, this doesn’t mean that only Catholics can be saved; rather, it means that even when non-Catholics get to heaven, they are saved only by being united to the Church in some way, even if they don’t realize it (Dominus Iesus 20).
For many people today, this is a very arrogant claim. It goes against the grain of our culture, which celebrates diversity and preaches acceptance and tolerance above pretty much everything