Pride was the first and original sin and it was committed in heaven. This sin brought down the most decorated, powerful, and anointed angel from grace to hell. It became the only singular unpardonable sin because satan would not be content with the position where God place him, but would rather take the place of God.

This became an irreversible error, an unatonable sin and led to satan’s ultimate downfall. In contrast, we could see Jesus condescended and humbled himself to the point of death.