You: Let me revise my example, then. Let us say that I commit adultery one hundred times, then repent and save 25,000 children from starving.

Aaron: That would be wonderful. You would be showing your repentance by giving to those less deserving than yourself, and God would forgive you for your sins, no matter how heinous they had been. So long as you are truly repentant, God's forgiveness is infinite.

You: I am pleased to hear that. Now, let's examine the case of a man who is driven to adultery by his base passions but always feels guilty afterwards. After each act of adultery he gives one thousand dollars to a poor family in order to stop those feelings of guilt, to cleanse his soul one might say. He is truly sorry for what he has done, and giving to those more deserving than himself makes him feel much better, but over a period of weeks he starts to feel an urge to commit adultery again. It is a vicious cycle of sin and forgiveness, but it seems to be allowed under your definition of justice.

Aaron: That is a limiting case, completely imaginary with no bearing on the real world. I suggest that we move on to more concrete subjects.