In his 1933 address ‘The Responsibility of the Church in Our New Age,’ J. Gresham Machen explored two sub-questions by way of explaining his subject: “(1) What is the new age? (2) What is the church?” Find that whole address at the end of D.G. Hart’s Fighting the Good Fight. A few quotes from Machen’s first section on the new age:
There are old things which ought to remain in the new age; and many of the things, both good and bad, which the new age regards as new are really as old as the hills.
In the former category are to be put, for example, the literary and artistic achievements of past generations. Those are things which the new age ought to retain, at least until the new age can produce something to put in their place, and that it has so far signally failed to do. I am well aware that when I say to the new age that Homer is still worth reading, or that the Cathedral of Amiens is superior to any of the achievements of the art nouveau, I am making assertions which it would be difficult for me to prove. There is no disputing about tastes. Yet, after all, until the artistic impulse is eradicated more thoroughly from human life than has so far been done even by the best efforts of the metallic civilization of our day, we cannot get rid of the categories of good and bad or high and low in the field of art. But when we pay attention to those categories, it becomes evident at once that we are living today in a drab and decadent age, and that a really new impulse will probably come, as it has come so many times before, only through a rediscovery of the glories of the past. (198)

The Rose Window at the Cathedral of Amiens, William J. Smither
So much for Machen’s view of new age art. On the next page, he discusses the mechanization of life in the new age. Machines are not to blame for the problems of the new age, says Machen, but man himself. He concludes that “the real trouble with the world lies in the soul of man” (200):
Unquestionably, industrialism, with the accompanying achievements of modern science in both the physical and the social realm, does constitute a great temptation to destroy freedom; but temptation is not compulsion, and of real compulsion there is none.
No, my friends, there is no real reason for mankind to surrender to the machine. If liberty is crushed out, if standardization has its perfect work, if the worst of all tyrannies, the tyranny of the expert, becomes universal, if the finer aspirations of humanity give way to drab efficiency, do not blame the external conditions in the world today. If human life becomes mechanized, do not blame the machine. Put the blame exactly where it belongs–upon the soul of man.
Is it not in general within that realm of the soul of man that the evils of society have their origin today? We have developed a vast and rather wonderful machinery–the machinery of our modern life. For some reason, it has recently ceased to function. The experts are busily cranking the engine, as I used to do with my Ford car in the heroic days when a Ford was still a Ford. They are wondering why the engine does not start. They are giving learned explanations of its failure to do so; they are adducing the most intricate principles of dynamics. It is all very instructive, no doubt. But the real explanation is much simpler. It is simply that the driver of the car has forgotten to turn on the switch. The real trouble with the engine of modern society is that it is not producing a spark. The real trouble lies in that unseen realm which is found within the soul of man.
That realm cannot be neglected even in a time of immediate physical distress like the present. I do not know in detail how this physical distress is to be relieved. I would to God that I did. But one thing I do know; it will never be relieved if, in our eagerness to relieve it, we neglect the unseen things. It is not practical to be merely practical men; man cannot successfully be treated as a machine; even the physical welfare of humanity cannot be attained if we make that the supreme object of our pursuit; even in a day when so many material problems are pressing for our attention, we cannot neglect the evils of the soul. (199-200)
After Machen’s examination of several characteristics of the new age, the rest of the address is devoted to answering the second question: what is the church? That section is worth reading, but for now I want to skip to the end of the address. Machen concludes by outlining what one has a right to expect from “a true Christian church,” and then returning to the subject of the church’s responsibility in the new age:
If you are dissatisfied with a relative goodness, which is no goodness at all; if you are conscious of your sin and if you hunger and thirst after righteousness; if you are dissatisfied with the world and are seeking the living God, then turn to the Church of Jesus Christ. That church is not always easy to distinguish today. It does not always present itself to you in powerful organizations; it is often hidden away here and there, in individual congregations resisting the central ecclesiastical mechanism; it is found in groups, large or small, of those who have been redeemed from sin and are citizens of a heavenly kingdom. But wherever it is found, you must turn to that true Church of Jesus Christ for a message from God. The message will not be enforced by human authority or by the pomp of numbers. Yet some of you may hear it. If you do hear it and heed it, you will possess riches greater than the riches of all the world.
Do you think that if you heed the message you will be less successful students of political and social science; do you think that by becoming citizens of another world you will become less fitted to solve this world’s problems; do you think that acceptance of the Christian message will hinder political or social advance? No, my friends. I will present to you a strange paradox but an assured truth–this world’s problems can never be solved by those who make this world the object of their desires. This world cannot ultimately be bettered if you think that this world is all. To move the world you must have a place to stand.
This, then, is the answer that I give to the question before us. The responsibility of the church in the new age is the same as its responsibility in every age. It is to testify that this world is lost in sin; that the span of human life–nay, all the length of human history–is an infinitesimal island in the awful depths of eternity; that there is a mysterious, holy, living God, Creator of all, Upholder of all, infinitely beyond all; that He has revealed Himself to us in His Word and offered us communion with Himself through Jesus Christ the Lord; that there is no other salvation, for individuals or for nations, save this, but that this salvation is full and free, and that whosoever possess it has for himself and for all others to whom he may be the instrument of bringing it a treasure compared with which all the kingdoms of the earth–nay, all the wonders of the starry heavens–are as the dust of the street.
An unpopular message it is–an impractical message, we are told. But it is the message of the Christian church. Neglect it, and you will have destruction; heed it, and you will have life. (208-209)