Traditionally, the origin of sin has been ascribed to the sin of the first man, Adam, who disobeyed God in eating the forbidden fruit (of knowledge of good and evil) and, in consequence, transmitted his sin and guilt by heredity to his descendants. The doctrine has its basis in the Bible. The concept of Original Sin was explained in depth by St Augustine & formalized as part of Roman Catholic doctrine by the Councils of Trent in the 16th Century. Original sin is not just this inherited spiritual disease or defect in human nature; it's also the 'condemnation' that goes with that fault.
Traditionally, the origin of sin has been ascribed to the sin of the first man, Adam, who disobeyed God in eating the forbidden fruit (of knowledge of good and evil) and, in consequence, transmitted his sin and guilt by heredity to his descendants. The doctrine has its basis in the Bible. The concept of Original Sin was explained in depth by St Augustine & formalized as part of Roman Catholic doctrine by the Councils of Trent in the 16th Century. Original sin is not just this inherited spiritual disease or defect in human nature; it's also the 'condemnation' that goes with that fault.