"Past sins" refers to wrongdoings or mistakes that a person has committed in the past. It implies actions or decisions that may have caused harm, hurt others, or violated moral principles. Full definition
This regret for past sins, the affirmation of an improved doctrine, and gestures in the direction of practical change are all to be celebrated. (religion-online.org)
Nor does it mean that the social and personal effects of past sins are all wiped out. (religion-online.org)
You start discovering this real freedom to live free from past sins and condemnation and guilt and shame. (relevantmagazine.com)