1st, point out where Catholic tradition condradicts the Bible. please use many examples. I have seen most of them and most are easily shot down.
2nd, The Magisterium is part of the Catholic Tradition. It helps interpret scripture and tradition in order to form a coherent whole theology.
3rd. The Bible makes much more sense after looking at it through the tradition and interpretations of the Catholic Church-—you see the wholeness of how it all comes together from Genesis to Revelation. The theologians are able to construct a theology based on the whole of scripture rather than do what Protestants usually do-—which is to take a couple verses out of one of Paul’s letters, out of context, and completely ignore the Gospels.
I pretty much got #3 on my own after I was taught to read.
We’ll start with these. They may be “easily” shot down, but I’ve never seen them “effectively” shot down.
Mary as “Mediatrix”
Immaculate conception
Perpetual virginity of Mary