Pope St. Cornelius

“There was one voice from all, giving thanks to God; all were expressing the joy of their heart by tears, embracing them as if they had this day been set free from the penalty of the dungeon. And to quote their very own words —“We,” they say, “know that Cornelius is bishop of the most holy Catholic Church elected by Almighty God, and by Christ our Lord. We confess our error; we have suffered imposture; we were deceived by captious perfidy and loquacity. For although we seemed, as it were, to have held a kind of communion with a man who was a schismatic and a heretic, yet our mind was always sincere in the Church. For we are not ignorant that there is one God; that there is one Christ the Lord whom we have confessed, and one Holy Spirit; and that in the Catholic Church there ought to be one bishop.” (Cyprian’s 45 Epistle, including the letter of Pope St. Cornelius to St. Cyprian).