37. The concept of a trinity of gods also goes against enlightened reason, as many arguments are capable of establishing. What person of sound reason would be open to hearing that three gods created the world? Or that creating and preserving, redeeming and saving, and reforming and regenerating are tasks undertaken by three gods, not one God? On the other hand, what person of sound reason would not be open to hearing that the same God who created us also redeems, regenerates, and saves us? Since the latter thoughts are reasonable, but the former are not, every group of religious and reasonable people on the face of this earth acknowledges that there is one God.

As we all know, Muslims and some of the peoples in Asia and Africa detest Christianity because they believe it entails the worship of three gods. When Christians are rebuked on this account, they have only one response: that the three persons share one essence, and therefore constitute one God.

I can attest that the reasoning power granted me allows me to see that no world, no angelic heaven, no church, and nothing within any of them could have come into existence or could continue to exist if there were not one God.

81. Astoundingly, the teaching that faith is the only thing that justifies us occupies every square inch throughout the entire Protestant world; that is, within the clergy it rules as virtually the only theology. This position is what all candidates for the ministry eagerly learn, consume, and absorb in college. Then, as if they were people inspired with heavenly wisdom, they teach that position in their churches and publish it in their books. Through it they pursue and achieve the name, reputation, and glory of having superior erudition. Because of it they are given diplomas, fellowships, and awards. And all this goes on, despite the fact that as a result of that teaching alone the sun today is darkened, the moon is deprived of its light, and the stars of the heavens have fallen, that is, have been destroyed.

I have been given absolute proof that the teaching that faith assigns us justice has so blinded human minds today that they do not want, and are therefore virtually unable, to see any divine truth in the light of the sun or in the light of the moon. They can see it only in the light of a fireplace by night. I can therefore make this assertion: If divine truths about the true partnership between goodwill and faith, about heaven, about the Lord, and about the eternal happiness that comes from him were to be written in silver letters and sent down from heaven, people who believe that we are justified by faith alone would not even consider them worth reading. The complete opposite would happen, though, if a paper asserting that faith alone makes us just were to be sent up from below.

We also read in the Formula of Concord that the article concerning justification by faith alone, or concerning the justice that we acquire through faith, is the most important of all Christian teachings, and that works of the law must be completely excluded from this article (pages 17, 61, 62, 72, 89, 683; appendix, page 164).