What are the chief attributes of the Catholic Church? The chief attributes of the Catholic Church are authority, infallibility, and indefectibility. They are called attributes because they are qualities perfecting the nature of the Church.
What is meant by the authority of the Catholic Church? By the authority of the Catholic Church is meant that the Pope and the bishops, as the lawful successors of the apostles, have power from Christ Himself to teach, to sanctify, and to govern the faithful in spiritual matters.
On behalf of Christ, therefore, we are acting as ambassadors, God, as it were, appealing through us. (II Corinthians 5:20)
Further reading: CCC 880-887