Is redemption truly possible? That is, is it possible to commit an act of genuine evil and truly recover from it?
Redemption is possible from committing an act of truly genuine evil. To recover form an act of truly genuine evil you must do a lot of good deeds and try to change the world for the better and hopefully over time the good deeds will outweigh the bad you have.
In Biblical history the words 'redeem' and 'Redeemer' relate to the exodus from Egypt, in which God set the Israelites free from slavery to the Egyptians. To this historical redemptive act of God the prophets repeatedly refer, reminding the Israelites that the God they have forsaken, and who calls them back to himself, is their mighty Redeemer.