Here are some church teachings that help from Ott’s Fundmental’s of Catholic Dogma.
- The punishment of the damned is proportioned to each one’s guilt. (Sent. communis.)
This would indicate that there are degrees of pain in hell depending on the guilt, how many and how devious the total number of mortal sins there are. For the number and type would play into calculating the guilt. Which means that it would be incorrect to think that after one mortal sin that those mortal/venial sins that followed are not important.
- The souls of the just which, in the moment of death, are burdened with venial sins or temporal punishment due to sins, enter Purgatory. (De fide.)
This would indicate that all sins, venial and mortal, which have been forgiven have temporal or purgatorial punishment administered for each and every one. This would include forgiven mortal sins, forgiven venial sins, and those venial sins which have not been forgiven.
In confession, how much of temporal/purgatorial punishment is removed by the sacrament, or by the penance, is unknown. It seems that some, or maybe all, may be forgiven. But this is an unknown. The disposition of sorrow would seem to have a bearing on this, as well as the determination to reform. But in the end, we do not know how much purgatorial punishment remains to be done.
Outside of confession, alms/charity, prayer, fasting, would make up for the wrong we have done and diminish this punishment. Also the church grants indulgences for certain prayers, which means a forgiveness of some or all purgatorial punishment depending on the usual requirements of the sacraments. These indulgences and other good actions may also be used for those of our friends and relatives already in purgatory. And this is a great blessing for us who love them.
James 5:20
“…he who causes a sinner to be brought back from his misguided way, will save his soul from death, and will COVER A MULTITUDE OF SIN.”
Bringing back a sinner is accomplished by praying for them as well as in other ways.
All this knowledge we should use for helping ourselves and for helping others, and it is the reason the church teaches us these things, to help us, to make it better, and to grant more forgiveness, and to encourage good acts of charity and prayer. This will give us the knowledge to prepare us for what lies ahead so we may enter his kingdom quicker and more safely.
Just a few thoughts.