Original Sin

1. Adam & Eve:  Genesis 3: 1-13, 21-24 (The Message)
2. Origins of sin: Romans 5:12, 19 "Therefore as sin came into the world through one man and death through sin, and so death spread to all men because all men sinned... For as by one man's disobedience many were made sinners, so by one man's obedience many will be made righteous."
3. Christ's Role: 1 Cor. 15:22 "For as in Adam all die, even so in Christ shall all be made alive."
4. Nobody is righteous: Rom. 3:10 "As it is written, There is none righteous, no, not one."

Book 2

1. Sin not inherited: Ezek. 18:20 "The soul that sins shall die. The son shall suffer for the iniquity of the father, nor the father suffer for the iniquity of the son; the righteousness of the righteous shall be upon himself, and the wickedness of the wicked shall be upon himself."
2. Old Testament righteousness: Job 1:1 "There was a man in the land of Uz, whose name was Job; and that man was blameless and upright, and one who feared God, and turned away from evil."
3. New Testament righteousness: Luke 1:5-6 "In the days of Herod, the king of Judaea, there was a priest named Zacharias, of the division of Abia; and he had a wife of the daughters of Aaron, and her name was Elizabeth. And they were both righteous before God, walking in all the commandments and ordinances of the Lord blameless."

Look

Dictionary definitions of original sin...

1. The fallen state of humanity
2. The general condition of sinfulness into which human beings are born.

1. Judaism
2. Paul
3. Augustine of Hippo
   
4. John Calvin

Took

"Judaism is emphatic that a person is born innocent - not evil, not good either, but innocent. Jews believe that man enters the world free of sin, with a soul that is pure and innocent and untainted. We are given a clean slate. But we are not born into an innocent world. The world we are born into is one of challenge, difficulty, pain and evil. But all these are merely means to an end: it is through facing challenges that we grow as human beings, through going through difficulty we bring out deeper resources from within, through pain we become stronger and by combatting evil we create a world of good.
God is gave us a choice to either remain perfect in a perfect (spiritual) world, or we can ingest the knowledge of good and evil and become imperfect, mortal.

Christians have different views on the way to receive salvation from original sin. On one end of the spectrum are those such as Calvinists who believe that each particular person who puts faith in Christ is predestined from the foundation of the world to live in the light of God's love, but those who do not trust in Christ will remain in darkness and the guilt of sin. On the other end are those such as universalists that believe that every person ever born will ultimately be justified, restored and saved. Between those two poles are those that emphasize man's ability to choose life with God or separation from God; people remain dependent on God's grace and mercy, but also have a part to play in achieving their own salvation. Augustine wrote in Latin in the fourth century, but his writings were not translated into Greek until the fourteenth century. Consequently, Eastern and Oriental Orthodox Christianity never held that guilt is inherited, and began repudiating this idea once they learned of it."  (Lewis Loflin)