"The fourth note or mark of the Church is to be Apostolic. That is to say, it was founded by the Apostles and is governed by their successors, the bishops, who since the Apostles, have succeeded without interruption. And these bishops have a LAWFUL MISSION to guard always, in their teaching and management of the Church, the unity of Faith and of communion with their head and center, the Roman Pontiff." ...
"You will notice above that with the word MISSION I added the word LAWFUL, that is, coming from that one who has the keys of the kingdom of heaven or of the Church, who is the Pope. Therefore the intruder bishops, or those who have separated themselves from obedience to the Roman Pontiff, are NOT successors of the Apostles. Rather, they are thieves, as Jesus Christ calls them, and we must flee from them as the sheep flee from the wolves."