Whether a character can be blotted out from the soul?

Objections

Objection 1 : It seems that a character can be blotted out from the soul. Because the more perfect an accident is, the more firmly does it adhere to its subject. But grace is more perfect than a character; because a character is ordained unto grace as to a further end. Now grace is lost through sin. Much more, therefore, is a character so lost.
Objection 2 : Further, by a character a man is deputed to the Divine worship, as stated above (Articles [3],4). But some pass from the worship of God to a contrary worship by apostasy from the faith. It seems, therefore, that such lose the sacramental character.
Objection 3 : Further, when the end ceases, the means to the end should cease also: thus after the resurrection there will be no marriage, because begetting will cease, which is the purpose of marriage. Now the exterior worship to which a character is ordained, will not endure in heaven, where there will be no shadows, but all will be truth without a veil. Therefore the sacramental character does not last in the soul for ever: and consequently it can be blotted out.