10. Teachings from the Formula of Concord on original sin:

(a) Since the fall of Adam, all human beings who are propagated according to nature are born with sin, which condemns and brings eternal death to those who are not born anew. The merit of Christ is the sole means and instrument through which we are reborn, and therefore the only remedy by which we are healed (pages 9, 10, 52, 53, 55, 317, 641, 644, and the appendix, pages 138, 139).

(b) Original sin is a corruption of our nature at such a deep level that there is nothing spiritually sound left in the human body or soul or in their powers (page 574).

(c) It is the source of all other, actual sins (pages 317, 577, 639, 640, 942; appendix, page 139).

(d) It is the complete absence or lack of the image of God (page 640).

(e) A distinction must be maintained between our nature, as it was created by God, and the original sin that resides within our nature (page 645).

(f) The volume refers to original sin as the Devil’s work, spiritual poison, and the root of all evils, and says it is an “accident” and a “quality.” Our nature, on the other hand, is there referred to as the work and the creation of God; it is our person, substance, and essence. The volume gives as a comparison the distinction between the person who is infected with a disease and the disease itself.

108. The first reason why Roman Catholics are better equipped than Protestants to become part of the New Jerusalem (that is, the new church) is this: The belief that we are justified by being assigned Christ’s merit, which is wrong and cannot live alongside the faith of the new church (see §§102– 104), has been wiped out among Roman Catholics, and should be completely eradicated. This belief is firmly fixed in Protestants, however, as if it were carved into their being. It is the chief teaching in their church.

The second reason is that Roman Catholics have more of an idea than Protestants that there is divine majesty in the Lord’s human manifestation. This is abundantly clear in the extremely sacred way in which Roman Catholics venerate the Host.

The third reason is that Roman Catholics see goodwill, good works, repentance, and the effort to live a new life as essential to salvation; the new church, too, considers them essential. Protestants who are committed to faith alone, though, have a very different view. They see these as playing a nonessential role or even no role at all in our faith; they see them as contributing nothing to our salvation.

These are three reasons why Roman Catholics, if they turn to God the Savior himself directly rather than indirectly and if they take both elements in the Holy Eucharist, are better equipped than Protestants to receive a living faith in place of a dead one and be led by the Lord, through the agency of his angels, to the gates of the New Jerusalem (the new church) and brought in shouting for joy.

[The Assignment of Christ’s Merit]