Darth Vader was born Anakin Skywalker on the desert planet of Tattooine.
Ani, as he was called by his dear mother, was always doing good deeds as a child, and often dreamed of becoming part of the Christian crusaders of the Force known as Jedi.
Anakin studied the ways of the Christian extremists and knew all about their ways when one day, by divine intervention, he met one of their high priests known as Qui-Gon Jinn. Qui-Gon saw the potential inside young Ani and requested his parishioners to train the boy in their violent yet monk-like ways.
For awhile it looked as though Anakin might be the savior once prophesied to return, but the devil was working hard too, and soon used a middle aged Senator to drive Anakin away from the Christian focused Jedi, and over to the pagan Sith Lords.
Anakin proved to be weak in his faith of the force of the Christian Jedi and was lured into a world of anger, hate, and dollar beer drafts on the yet to be completed Death Star and became one of the most well known pagan leaders of all time, Darth Vader.
For years, Darth Vader served his lord and leader faithfully, until a chance encounter with his son he had thought long since dead. His lord and emperor tried to convince Vader to kill his only male child but Vader faltered and remembered his own childhood and his relationship with his mother whom had been tragically murdered years ago.
Vader asked for forgiveness and repented in his sinful ways and killed his emperor. Shortly before his death he was granted repentance, converted back to the Christian Jedi, and apologized to his son.
If Vader can be forgiven, we can all be forgiven.