“The past cannot be undone. At best it can be understood so, perhaps, it can also be forgiven.”
“The past can't be changed, can it? It can just be forgiven.”
“He’d undone all he could. You can be sorry, and you can be forgiven, but you can’t call back the futures that your bad decisions lost”
“Evil can be undone, but it cannot "develop" into good.”
“What is done cannot be undone, but one can prevent it happening again.”
“We can be forgiven for a wrongdoing we have committed.We cannot be forgiven for a wrongdoing we have committed and tried to cover up.”