3. From the Council of Trent concerning original sin:

(a) The entire Adam, through the offense of his prevarication, was changed, in body and soul, for the worse. The prevarication of Adam injured not only himself but also his posterity; it transfused not only death and pains of the body into the whole human race but also sin itself, which is the death of the soul (Session 5, numbers 1, 2).

(b) This sin of Adam — which in its origin is one, and being transfused by propagation, not by imitation, is in each one as his or her own — cannot be taken away by any other remedy than the merit of the one and only Savior, our Lord Jesus Christ, who reconciled us to God in his own blood, being made justice, sanctification, and redemption for us (Session 5, number 3).

(c) All human beings had lost their innocence in the prevarication of Adam; they became unclean and by nature children of wrath (Session 6, chapter 1).

29. The points just presented illustrate the truths stated in §§19 and 21, that Roman Catholics were the source the leading reformers drew on for their own teachings on the trinity of persons in the Divine, original sin, the assigning of Christ’s merit to us, and our being justified by faith alone.

The purpose of these points has been to show the origin of these key Protestant teachings, especially how the separation of faith from good works and the teaching concerning faith alone came about. Protestants arrived at this for the sole purpose of differentiating themselves from Roman Catholics. Yet this disagreement was more a matter of semantics than of real substance.

The quotations given at the beginning of the book [§§9– 15] clearly reveal the foundation on which the faith of the Protestant churches was built and what inspired the development of that faith.