Why does St. Paul speak of the Truth as "the mystery of godliness"? In order to express both the Divine and the human aspects of the Christian faith. On the Divine side the Gospel is a mystery, a disclosed secret. It is a body of truth originally hidden from man's knowledge, to which man by his own unaided reason and abilities would never be able to find the way. In one word it is a revelation: a communication by God to men of Truth which they could not have discovered for themselves. "Mystery" is one of those words which Christianity has borrowed from paganism, but has consecrated to new uses by gloriously transfiguring its meaning. The heathen mystery was something always kept hidden from the bulk of mankind; a secret to which only a privileged few were admitted. It encouraged, in the very centre of religion itself, selfishness and exclusiveness. The Christian mystery, on the other hand, is something once hidden, but now made known, not to a select few, but to all. The term, therefore, involves a splendid paradox: it is a secret revealed to every one. In St. Paul's own words to the Romans (xvi. 25), "the revelation of the mystery which hath been kept in silence through times eternal, but now is manifested, and by the scriptures of the prophets, according to the commandment of the eternal God, is made known unto all the nations." He rarely uses the word mystery without combining with it some other word signifying to reveal, manifest, or make known.[53]
But the Christian faith is not only a mystery but a "mystery of godliness." It not only tells of the bounty of Almighty God in revealing His eternal counsels to man, but it also tells of man's obligations in consequence of being initiated. It is a mystery, not "of lawlessness" (2 Thess. ii. 7), but "of godliness." Those who accept it "profess godliness"; profess reverence to the God who has made it known to them. It teaches plainly on what principle we are to regulate "how men ought to behave themselves in the household of God." The Gospel is a mystery of piety, a mystery of reverence and of religious life. Holy itself, and proceeding from the Holy One, it bids its recipients be holy, even as He is Holy Who gives it.
"Who was manifested in the flesh, justified in the spirit, seen of angels, preached among the nations, believed on in the world, received up in glory."
After the text about the three Heavenly Witnesses in the First Epistle of St. John, no disputed reading in the New Testament has given rise to more controversy than the passage before us. Let us hope that the day is not far distant when there will be no more disputing about either text. The truth, though still doubted, especially in reference to the passage before us, is not really doubtful. In both cases the reading of the A.V. is indefensible. It is certain that St. John never wrote the words about the "three that bear witness in heaven": and it is certain that St. Paul did not write, "_God_ was manifest in the flesh," but "_Who_ was manifested in the flesh." The reading "_God_ was manifested in the flesh" appears in no Christian writer until late in the fourth century, and in no translation of the Scriptures, earlier than the seventh or eighth century. And it is not found in any of the five great primary MSS., except as a correction made by a later scribe, who knew of the reading "God was manifested," and either preferred it to the other, or at least wished to preserve it as an alternative reading, or as an interpretation. Even so cautious and conservative a commentator as the late Bishop Wordsworth of Lincoln declares that "the preponderance of testimony is overwhelming" against the reading "_God_ was manifested in the flesh." In an old Greek MS., it would require only two small strokes to turn "Who" into "God"; and this alteration would be a tempting one, seeing that the masculine "Who" after the neuter "mystery," looks harsh and unnatural.[54]