Where does Scripture say that the Holy Spirit is our Teacher?
He is an Advocate, a Comforter and a Guide to all truth.
The truth the Holy Spirit guides us to is that we have salvation in Jesus.
The only teachers that Scripture speaks of are men.
Protestants believe they have the truth. Catholics believe they have the fullness of truth.
Whose truth is THE TRUTH?
Jesus, and His Church guided by the Holy Spirit.
That is MY truth.
How is that any less valid than that of a protestant.