Sin, the Bible teaches, began in the angelic world
(Ezekiel 28:11‐19; Isaiah 14:12‐20), and is transmitted into the blood of the human race through disobedience and deception motivated by unbelief (I Timothy 2:14). Adam’s sin, committed by eating of the forbidden fruit from the tree of knowledge of good and evil, carried with it permanent pollution or depraved human nature to all his descendants. This is called “original sin.” Sin can now be defined as a volitional transgression against God and a lack of conformity to the will of God. We, therefore, conclude that man by nature, is sinful and that he has fallen from a glorious and righteous state from which he was created, and has become unrighteous and unholy. Man, therefore, must be restored to his state of holiness from which he has fallen by being born again
(St. John 3:7).