At its core, Roman Catholicism is a combination of Christian terminology and Scripture, the Roman legal system, and paganism.
In order to support their claim to being Christian, there is a massive twisting of Scripture and the addition of Vatican pronouncements and tradition both of which are given equal weight with Scripture in word but outweigh Scripture in practice.
In practice, grace is not freely given from Christ to His followers but must be filtered through the Mass and then through Mary. In other words, the RC Church sticks itself squarely between the believer and God as well as putting an idol in as a necessary step as well.
Putting itself in between the person and God, the RC church has then given itself the authority to forgive sins "in God's name" as well as to grant indulgences, declare anathemas, help get people out of an imaginary Purgatory, and, in general, not just represent God on earth, but stand in place of God here -- thus the Pope's title "Vicar of Christ". He has another title, "Pontifex Maximus," which literally means "greatest bridge-builder" which is the sole perogative and action of Christ.
In doing these things, the Roman Catholic church is literally trying to take the place of Christ. That is its biggest heresy.
In order to support their claim to being Christian, there is a massive twisting of Scripture and the addition of Vatican pronouncements and tradition both of which are given equal weight with Scripture in word but outweigh Scripture in practice.
In practice, grace is not freely given from Christ to His followers but must be filtered through the Mass and then through Mary. In other words, the RC Church sticks itself squarely between the believer and God as well as putting an idol in as a necessary step as well.
Putting itself in between the person and God, the RC church has then given itself the authority to forgive sins "in God's name" as well as to grant indulgences, declare anathemas, help get people out of an imaginary Purgatory, and, in general, not just represent God on earth, but stand in place of God here -- thus the Pope's title "Vicar of Christ". He has another title, "Pontifex Maximus," which literally means "greatest bridge-builder" which is the sole perogative and action of Christ.
In doing these things, the Roman Catholic church is literally trying to take the place of Christ. That is its biggest heresy.