There was a man who was born before his father, killed his mother, and married his sister.
Yet, there was nothing wrong with what he had done. Why?
Killed his mother: The mother died in childbirth and no child can be held responsible.
Married his sister: The man was a priest or religious leader of some sort:
Born before his father: This could refer to the calendar year only (Feb is before Aug), in the christian sense of being "born again", or the MOST likely..."before" used in this context can mean "in the presence of"...