The Devil woke up, got out of bed, and went door to door asking everyone for forgiveness.
Most people wouldn’t answer the door.
Some would open the door, but leave the chain latched, and they’d listen. Then, they’d say no, or they’d say they don’t think they are allowed to forgive him.
“Anyone can forgive,” The Devil would say. But this never convinced anyone to forgive him.
Sometimes, a child would answer the door, and they’d forgive him, but children are innocent.
So, The Devil looked in their eyes, and he taught them Evil.
For that, he never forgave himself.