[Tantumergo]

"Jesus established a LIVING TEACHING AUTHORITY."

Sure He did, but at Vatican II this LIVING TEACHING AUTHORITY told us it could give us DEFICIENT FORMULATIONS OF DOCTRINE. It sounds like this living teaching authority at some point became Protestant to me.

How can we trust a living teaching authority that tells us in its own words that its formulation of doctrine may be deficient?

Or do you not believe in the "infallibility" of this teaching of Vatican II?

[bornacatholic]

Where does it teach that? Google DECREE ON ECUMENISM UNITATIS REDINTEGRATIO and show me where it teaches that.