Thomas Aquinas On Original Sin, Part 7.
Treatise on Habits in Particular, Question 82, Article 3: Whether original sin is concupiscence?"Concupiscence" is defined as "inordinate desire." Aquinas concludes that formally "original sin" is defined as a privation of original justice (explained in previous articles), but materially "original sin" consists of inordinate desire.
Labels: Reformation Theology