And he, too, had to seek forgiveness. Rebellion, yes, rebellion with consequences always. All of our sins have consequences. There is no such thing as a sin in isolation. Cast a stone in a pond and observe the ripples.
Sin has such a rippling effect.
We first must realize the enormity, the gravity of sin. Then seek forgiveness. We worship our own self-will at the expense of another. Mankind went off the gold standard of idolatry sometime back in Exodus. That is what sin is.