I seem to be on a quixotic quest to reconcile the Catholic Church with Protestant theology. Sanity may return, but not now.
Soli Deo Gloria: to God alone be the Glory, is one of the Solas of the Reformation. I maintain Catholics should have no trouble with this. If they die and go to heaven, all the glory goes to Christ, not to themselves. Honor given to Mary and the saints is ultimately given to Christ alone, right? All honor and power and might and majesty belong to God alone (Rev 5:13, 7:10).
So Catholics should have no trouble with Soli Deo Gloria.
As with all of these disputes with Protestant formulations, we are on slippery ground. In most cases, the Catholic view cannot be opposed easily or directly to the Protestant view, because the Catholic understanding includes the Protestant view in some way.
For example, if one asserts a Protestant position as “faith alone saves,” it would be a mistake for a Catholic to disagree, as though this view were in opposition to the Catholic truth. In fact, under the correct circumstances, faith alone does save. Imagine a man who has jumped out of an airplane; his shut and backup both fail. As he falls toward the ground, he thinks about his life and what he has heard about Christ. For the first time he sees the light and believes. Seconds later, he is killed on impact.
In this hypothetical, has the fallen man been saved? Assuming that the facts are as stated (something we cannot know in any actual case before we die), the Catholic view would be that this man was saved in the sense that he will be admitted to Heaven. He did not have baptism, good works, or formal communion with the Church, and he received no sacramental grace to assist him. He did not even have the time or knowledge to consciously desire or intend to be baptized, if he lived. However, in Catholic thinking he has enough to be saved, because he did not have time for those other more palpable things. Here we have a case of a man saved by “faith alone.”
(Of course, grace “goes before” faith here. It was God’s grace that allowed the man to hear the things that allowed him to believe even in the minimal way that he managed. It was grace that allowed him the presence of mind to think of God rather than be consumed by fear or panic. Hence, when we say “faith alone” even in this case, we mean that faith was all that the man contributed; God’s contribution, grace, preceded the man’s response. But, I do not believe that this is denied by the Protestant view of the proposition “faith alone saves,” so it is not directly relevant to the question we are considering.)
For these reasons, Catholics should not deny “faith alone” in any thoroughgoing way, because we do not disagree with it when understood in the correct sense and context.
Likewise with “soli Deo gloria.” If it is understood in certain senses, this formula too is correct and acceptable; however, there is an important sense in which it can be fairly understood which would present problems and deny important truths.
Ad majorem gloriam Dei.
John Hiner