Whether a priest can use the key which he has, on any man?

Objections

Objection 1 : It would seem that a priest can use the key which he has, on any man. For the power of the keys was bestowed on priests by Divine authority in the words: "Receive ye the Holy Ghost; whose sins you shall forgive, they are forgiven them" (Jn. 20:22,23). But this was said without any restriction. Therefore he that has the key, can use it on any without restriction.
Objection 2 : Further, a material key that opens one lock, opens all locks of the same pattern. Now every sin of every man is the same kind of obstacle against entering into heaven. Therefore if a priest can, by means of the key which he has, absolve one man, he can do the same for all others.
Objection 3 : Further, the priesthood of the New Testament is more perfect than that of the Old Testament. But the priest of the Old Testament could use the power which he had of discerning between different kinds of leprosy, with regard to all indiscriminately. Much more therefore can the priest of the Gospel use his power with regard to all.