Matthew 16:18, Christ makes Peter His Vicar on earth. What is present there is Catholic, and uniquely Catholic.
Everyone else is rushing to cast off what is found in the New Testament...only the Catholic Church holds fast.
The picture appears to be that many use the following equation:
This is what WE are.
+ This is what WE do.
+ This is what WE are told by our priests.
+ This is what OUR tradition says.
+ This is what our councils have come up with.
+ WE feel beautiful about it all.
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= That must be, therefore, what the Bible is talking about.
I tried to find “Catholic,” “uniquely catholic,” or some preponderance of the same in Matthew 16, but I just can’t find it.