Whether there should be keys in the Church?

❌ Objection 1 : It would seem that there is no necessity for keys in the Church. For there is no need for keys that one may enter a house the door of which is open. But it is written (Apoc. 4:1): "I looked and behold a door was opened in heaven," which door is Christ, for He said of Himself (Jn. 10:7): "I am the door." Therefore the Church needs no keys for the entrance into heaven.

❌ Objection 2 : Further, a key is needed for opening and shutting. But this belongs to Christ alone, "Who openeth and no man shutteth, shutteth and no man openeth" (Apoc. 3:7). Therefore the Church has no keys in the hands of her ministers.

❌ Objection 3 : Further, hell is opened to whomever heaven is closed, and vice versa. Therefore whoever has the keys of heaven, has the keys of hell. But the Church is not said to have the keys of hell. Therefore neither has she the keys of heaven.