The forgiveness issue. I have heard some say that since they are saved by grace, there is no need as Christ already forgave you. I don’t quite see it that way.
The Cross was all Judgment.
Forgiveness now only occurs upon repentance and confession to God the Father, through faith in what Christ provided at the Cross.
Paul says that since we have grace and it abounds, should we sin all the more? Certainly not! or heaven forbid!, depending on your translation.