"Grace is God offering the greatest treasure of Life to those rightfully deserving of the punishment of death."

Why would He do that? Is He nuts? Completely irrational? Are the concepts of repentance and forgiveness irrelevant?

Could it be that repentance is necessary to be granted grace through His mercy?

The key elements in human thinking are not numbers but labels of fuzzy sets. -- L. Zadeh

Which explains a lot.