Earlier I argued, somewhat in passing, that integralism is false. Responding to the point about the Church’s teaching on marriage, P. Edmund Waldstein responds:

Leaving aside questions of the differences between supernatural faith and natural knowledge of the natural law, I would respond to my anonymous friend by saying that a truth need not be “obvious” in every sense for it to be blameworthy for someone not to know it. Consider St. Paul’s famous words in the Epistle to the Romans:

For from heaven is revealed the anger of God against all the impiety and unrighteousness of people who in their unrighteousness suppress the truth; since what can be known about God is plain to them because God made it plain to them. Since the creation of the world, what is his and invisible, his eternal power and divinity, has been perceived by the mind through what he has made, so that they have no excuse; because, while knowing God, they did not glorify or thank him as God, but they were be­guiled in their reasonings and their uncomprehending hearts were made dark. (Romans 1:18-21)

Now, the existence of God is surely not “obvious” to the gentiles in the sense employed by Entirely Useless. Their minds are darkened by sin, and so it is difficult for them to see the truth. But St. Paul teaches that this darkening by sin is blameworthy, and can be overcome. As I wrote in my letter to Cardinal Schönborn:

It is possible for conscience in the sense of the particular judgment about what is good to be in error. It is even possible to be habitually in error about the moral good. But there is something indelible about conscience in the sense of synderesis, the knowledge of the good that God has inscribed in our hearts. Hence moral error always includes an element of “suppressing the truth” (cf. Romans 1:18) that gives witness against us in the depths of the soul.

This is why, contra Fr. Häring, it is important to insist on the objective norm, which the person is capable of recognizing. One can even exert “pressure,” not to make someone act against their conscience, but rather to correct the judgement of their erring conscience by reminding them of the truth that is engraved by synderesis in the depths of their heart.

The idea is that whatever the status of Catholic doctrine in general, people are blameworthy if they do not believe that divorce and remarriage, while the previous spouse remains alive, is wrong, because this is a matter of the natural law.

Whether this is actually the case is debatable. The supplement to St. Thomas’s Summa states:

I answer that, As stated above (Article 1, Replies to 7 and 8), plurality of wives is said to be against the natural law, not as regards its first precepts, but as regards the secondary precepts, which like conclusions are drawn from its first precepts. Since, however, human acts must needs vary according to the various conditions of persons, times, and other circumstances, the aforesaid conclusions do not proceed from the first precepts of the natural law, so as to be binding in all cases, but only in the majority. for such is the entire matter of Ethics according to the Philosopher (Ethic. i, 3,7). Hence, when they cease to be binding, it is lawful to disregard them. But because it is not easy to determine the above variations, it belongs exclusively to him from whose authority he derives its binding force to permit the non-observance of the law in those cases to which the force of the law ought not to extend, and this permission is called a dispensation. Now the law prescribing the one wife was framed not by man but by God, nor was it ever given by word or in writing, but was imprinted on the heart, like other things belonging in any way to the natural law. Consequently a dispensation in this matter could be granted by God alone through an inward inspiration, vouchsafed originally to the holy patriarchs, and by their example continued to others, at a time when it behooved the aforesaid precept not to be observed, in order to ensure the multiplication of the offspring to be brought up in the worship of God. For the principal end is ever to be borne in mind before the secondary end. Wherefore, since the good of the offspring is the principal end of marriage, it behooved to disregard for a time the impediment that might arise to the secondary ends, when it was necessary for the offspring to be multiplied; because it was for the removal of this impediment that the precept forbidding a plurality of wives was framed, as stated above (Article 1).

Now it is true that the argument here is that such a dispensation was granted through “inward inspiration.” But if someone can believe this without being blameworthy, it is likely that someone can also believe that such a dispensation can be given by those who have care for the common good, namely the state. Furthermore, this concerns polygamy as such, and if it is believable that polygamy can be acceptable by dispensation, much more is it believable that remarriage after divorce can be acceptable by dispensation, since most of the harm that is done by polygamy is not evidently done in this case. And St. Paul in fact grants such a dispensation in some cases.

But let us set this aside. Whether or not something is against the natural law, and in what sense, is a technical question. The question which is actually relevant to our discussion is not technical at all. It is this: can someone believe that such a remarriage, while the previous spouse is alive, is acceptable, without being blinded by sin?

And put in this way, it is evident that some people can and do believe this, without being blinded by sin. For example, to assert that no one can believe this without being blinded by sin, implies that virtually all of the Orthodox are blinded by sin, since most of them believe that remarriage is sometimes acceptable. Now it might be reasonable to say that they are “blinded by sin” in a generic sense, if one meant to say that they are blinded by their religion and culture, and that the defects in these resulted from sin, but it would not reasonable to attribute their error to personal sin.

As another example, we can consider the reaction of the disciples in the Gospels to the teaching of Christ:

Some Pharisees came to him, and to test him they asked, “Is it lawful for a man to divorce his wife for any cause?” He answered, “Have you not read that the one who made them at the beginning ‘made them male and female,’ and said, ‘For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh’? So they are no longer two, but one flesh. Therefore what God has joined together, let no one separate.” They said to him, “Why then did Moses command us to give a certificate of dismissal and to divorce her?” He said to them, “It was because you were so hard-hearted that Moses allowed you to divorce your wives, but from the beginning it was not so. And I say to you, whoever divorces his wife, except for unchastity, and marries another commits adultery.”

His disciples said to him, “If such is the case of a man with his wife, it is better not to marry.”

If someone who is blinded by sin is confronted with their error, anger is a plausible reaction, but the kind of questioning in the passage, as well as the surprise indicated in the response that in this case, “It is better not to marry,” indicates rather an honest belief.

P. Edmund might well respond that the situation of the Orthodox, or of the disciples, is very different from the position of Catholics in the present day Catholic Church. And this is indeed the case, and it is quite plausible that many divorced and remarried Catholics are “blinded by sin,” or in other words, that their belief that their behavior is reasonable is a motivated belief, and more so than other beliefs. This is why I noted that Pope Francis may have chosen a singularly bad case to make his point. Nonetheless, these Catholics also live in a culture that finds remarriage acceptable, and in a Church in which the majority of professing members have significant disagreements with the teaching of that Church. So there is little reason to doubt that there are some who are no more blinded than the Orthodox or than the disciples of Christ.

Even if there were not, however, the larger point in that post about integralism, and about doctrinal disagreement within the Church, would remain.