Article Two of the Augsburg Confession: Original Sin.
“Our churches teach that since the fall of Adam, all who are naturally born are born with sin, that is, without the fear of God, without trust in God, and with the inclination to sin, called concupiscence. Concupiscence is a disease and original vice that is truly sin. It damns and brings eternal death on those who are not born anew through Baptism and the Holy Spirit…”