St. Paul here sums up in one verse the whole of Christian truth. He gives us in a few words what he says is the great mystery of godliness.
Now, men had been inventing for themselves all kinds of mysteries of godliness; all sorts of mysterious and wonderful notions about God; all sorts of mysterious and strange ceremonies, and ways of pleasing God, or turning away His anger.
And Christian men are apt to do so also, as well as those old heathens. They feel that they are very mysterious and wonderful beings themselves, simply because they are men. They say to themselves: “How strange that I should have a body of flesh and blood, and appetites and passions, like the animals, and yet that I should have an immortal spirit in me. How strange this notion of duty which I have, and which the other animals have not; this notion of its being right to do some things, and wrong to do others! From whence did that notion come? And again, this strange notion which I have, and cannot help having, that I ought to be like God: and yet I do not know what God is like. From whence did that notion come?”
Again: “I fancy that God ought to be good. But how do I know that He really is good? I see the world full of injustice, and misery, and death. How do I know that this is not God’s doing, God’s fault in some way?”
Again, says a man to himself: “I have a fair right to believe that mankind are not the only persons in the universe—that there are other beings beside God whom I cannot see. I call them angels. I hardly know what I mean by that. The really important question about them to me is: Will they do me harm? Can they do me good? Are they stronger than I?—Ought I not to fear them, to try to please them, to keep them favourable to me?”
Again, he asks: “Does God care whether I know what is right? Does God care to teach me about Himself? Is God desirous that I should do my duty? For if He does not care about my being good, why should I care about it?”
Again, he asks: “But if I knew my duty, might I not find it something too far-fetched, too difficult, for poor simple folk to do: so that I should be forced to leave a right life to great scholars, and to rich people, or to people of a very devout delicate temper of mind, who have a natural turn that way?”
And last of all: “Even if I did struggle to do right; even if I gave up everything for the sake of doing right; how do I know that it will profit me to do so? I shall die as every man dies, and then what will become of me? Shall I be a man still, or only—horrible thought!—some sort of empty ghost, a spirit without body, of which I dream, and shudder while I dream of it?”
Men in all ages, heathens and Christians, have been puzzled by such thoughts as these, as soon as they began to feel that there was a world which they could not see, as well as a world which they could see; a spiritual world, wherein God the Spirit, and their own spirits, and spiritual things, such as right, wrong, duty, reason, love, dwell for ever; and a strange hidden duty on all men to obey that unseen God, and the laws of that spiritual world; in short a mystery of godliness.
Then they have tried to answer these questions for themselves; and have run thereby into all manner of follies and superstitions, and often, too, into devilish cruelties, in the hope of pleasing God according to some mystery of godliness of their own invention.