Thomas Aquinas

“ Art. 3 - Whether a man who is excommunicated or suspended can excommunicate another? Objection 1: It would seem that one who is excommunicated or suspended can excommunicate another. For such a one has lost neither orders nor jurisdiction, since neither is he ordained anew when he is absolved, nor is his jurisdiction renewed. But excommunication requires nothing more than orders or jurisdiction. Therefore even one who is excommunicated or suspended can excommunicate. ”

“ Suspension is not so great a punishment as excommunication, since those who are suspended are not deprived of the prayers of the Church, as the excommunicated are. Wherefore a man can be suspended without having committed a sin himself, just as a whole kingdom is laid under an interdict on account of the king's crime. ”

“ And although sometimes an act belongs to a whole multitude, as when many draw a boat, which none of them could draw by himself, yet it is not probable that a community would so wholly consent to evil that there would be no dissentients. ”

“ Although privation does not receive more or less in itself, yet it can, as regards its cause. In this way an excommunication can be repeated, and a man who has been excommunicated several times is further from the Church's prayers than one who has been excommunicated only once. ”

“ But since the baptismal character whereby a man is numbered among God's people, is indelible, one who is baptized always belongs to the Church in some way, so that the Church is always competent to sit in judgment on him. ”

“ The power of consecration results from the power of the character which is indelible, wherefore, from the very fact that a man has the character of order, he can always consecrate, though not always lawfully. ”