What is original sin?
A. 1. “Original sin” can mean two things. First of all, it may be a reference to the sin that Adam committed. Secondly, it could be a reference to the consequence of Adan’s sin, a reference to the stain that is inherited by the human race as a result of being descendants of Adam. “Original sin” is not the same as “actual sin”. “Actual sins” are those that a person commits. “Actual sin” is an act contrary to the will and law of God whether by doing evil (sin of commission) or refraining from doing good (sin of omission). “Actual sins” can either be “mortal” or “venial.” “Mortal sin” destroys the faith. “Venial sin” does not destroy the faith. “Actual sin” includes the free will to oppose God’s law by thought, desire, word, action or omission.