Of course, the only sins which cannot be forgiven are the unforgivable sin which is the sin against Hope (the second of the Cardinal Virtues). The sins against hope which cannot be forgiven are presumption and despair.
The former is akin to the Protestant theory that once you are "saved" you cannot do anything to lose your salvation. That is presumption and is unforgivable as you don't think you need forgiveness.
The latter, despair, is unforgivable as you don't think you can be forgiven for whatever reason: you think you have committed too many sins, or too horrible a sin, or whatever.
The sins against hope cannot be forgiven for the simple reason that you cannot be contrite and ASK for forgiveness. God will forgive ANYTHING as long as we repent of it - which is not just being sorry for it, but trying not to do it again.
Sins which we have not yet done cannot be forgiven until AFTER we do them, and repent of them. But all mortal sins can be forgiven as long as we confess them and repent. It is only when we are not contrite and repentant that we cannot be forgiven.
Sins that are confessed to a priest and proper penance was observed, such sins are forgiven and not accountable and need not be confessed again.
All sins can be forgiven in may ways because God can do all things
Venial sins can be, but mortal sins can only be forgiven through the sacrament of penance. Although it is recommended to confess venial sins in the sacrament of penance as well.
Mortal sins can only be forgiven in the sacrament of penance or with an act of perfect contrition with the resolve to go to confession as soon as possible. Venial sins can be forgiven with an act of imperfect or perfect contrition, reception of the Holy Eucharist, use of a sacramental, after death.
so that their sins are forgiven
All sins are forgiven in heaven if they weren't no one would ever go to heaven. I believe sins are forgiven on earth too but some that may not seem forgiven because people go to jail for them would be murder rape (adultery).
"Your sins are Forgiven."
Yes, or our sins would never be forgiven.
I would still be here on this earth, but I would not have the knowledge that my sins were forgiven.
Join Illuminati and you shall be forgiven for your sins. We will help you.
Jesus died for our sins so we could be forgiven
An indulgence is a remission of the temporal punishment for sins already forgiven.