Backed up by scripture my Friend.
Acts 17:11 Now the Bereans were of more noble character than the Thessalonians, for they received the message with great eagerness and examined the Scriptures every day to see if what Paul said was true.
Even Pauls words were to be examined by Scriptures to see if what Paul said was true. We cant find what the RCC says to be true from scripture.
Show me where Scripture says that everything they said and taught is recorded in Scripture.