Whether a priest can remit sin as to the punishment?

Objections

Objection 1 : It would seem that a priest cannot remit sin as to the punishment. For sin deserves eternal and temporal punishment. But after the priest's absolution the penitent is still obliged to undergo temporal punishment either in Purgatory or in this world. Therefore the priest does not remit the punishment in any way.
Objection 2 : Further, the priest cannot anticipate the judgment of God. But Divine justice appoints the punishment which penitents have to undergo. Therefore the priest cannot remit any part of it.
Objection 3 : Further, a man who has committed a slight sin, is not less susceptible to the power of the keys, than one who has committed a graver sin. Now if the punishment for the graver sin be lessened in any way through the priestly administrations, it would be possible for a sin to be so slight that the punishment which it deserves is no greater than that which has been remitted for the graver sin. Therefore the priest would be able to remit the entire punishment due for the slight sin: which is false.
Objection 4 : Further, the whole of the temporal punishment due for a sin is of one kind. If, therefore, by a first absolution something is taken away from the punishment, it will be possible for something more to be taken away by a second absolution, so that the absolution can be so often repeated, that by virtue of the keys the whole punishment will be taken away, since the second absolution is not less efficacious than the first: and consequently that sin will be altogether unpunished, which is absurd.