"The task of giving an authentic interpretation of the Word of God, whether in its written form or in the form of Tradition, has been entrusted to the living teaching office of the Church alone. Its authority in this matter is exercised in the name of Jesus Christ."[47] This means that the task of interpretation has been entrusted to the bishops in communion with the successor of Peter, the Bishop of Rome.
To the Catholic Church the interpretation of the Word of God is not by the Holy Spirit, but by man.
The Popes are not very good at playing God.
I'll take my personal revelation from the Holy Spirit, thank you.
Not knocking the Catholic Church as an insitution, but if it gets it's moral authority from the Pope rather than the Word of God, no wonder it can't clean it's own house.