Whether the fire of Purgatory delivers from the debt of punishment?

Objections

Objection 1 : It would seem that the fire of Purgatory does not deliver from the debt of punishment. For every cleansing is in respect of some uncleanness. But punishment does not imply uncleanness. Therefore the fire of Purgatory does not deliver from punishment.
Objection 2 : Further, a contrary is not cleansed save by its contrary. But punishment is not contrary to punishment. Therefore one is not cleansed from the debt of punishment by the punishment of Purgatory.
Objection 3 : Further, a gloss on 1 Cor. 3:15, "He shall be saved, yet so," etc. says: "This fire is the trial of tribulation of which it is written (Ecclus. 27:6): The furnace tries the potter's vessels," etc. Therefore man expiates every punishment by the pains of this world, at least by death, which is the greatest punishment of all, and not by the fire of Purgatory.