It was late at night when our Lord had this interview with the Jewish teacher. At the pauses in conversation, we may conjecture, they heard the wind without as it moaned along the narrow streets of Jerusalem; and our Lord, as was His wont, took His creature into His service--the service of spiritual truth. The wind was a figure of the Spirit. Our Lord would not have used the same word for both. The wind might teach Nicodemus something of the action of Him who is the real Author of the new birth of man. And it would do this in two ways more especially.
On a first survey of nature, the wind arrests man's attention, as an unseen agent which seems to be moving with entire freedom. "The wind bloweth where it listeth." It is fettered by none of those conditions which confine the swiftest bodies that traverse the surface of the earth; it sweeps on as if independent of law, rushing hither and thither, as tho obeying its own wayward and momentary impulse. Thus it is an apt figure of a self-determining invisible force; and of a force which is at times of overmastering power. Sometimes, indeed, its breath is so gentle, that only a single leaf or blade of grass will at distant intervals seem to give the faintest token of its action; yet, even thus, it "bloweth where it listeth." Sometimes it bursts upon the earth with destructive violence; nothing can resist its onslaught; the most solid buildings give way; the stoutest trees bend before it; whatever is frail and delicate can only escape by the completeness of its submission. Thus, too, it "bloweth where it listeth." Beyond anything else that strikes upon the senses of man, it is suggestive of free supersensuous power; it is an appropriate symbol of an irruption of the invisible into the world of sense, of the action, so tender or so imperious, of the divine and eternal Spirit upon the human soul.
But the wind is also an agent about whose proceedings we really know almost nothing. "Thou hearest the sound thereof"; such is our Lord's concession to man's claim to knowledge. "Thou canst not tell whence it cometh, and whither it goeth"; such is the reserve which He makes in respect of human ignorance. Certainly we do more than hear the sound of the wind; its presence is obvious to three of the senses. We feel the chill or the fury of the blast; and, as it sweeps across the ocean, or the forest, or the field of corn, we see how the blades rise and fall in graceful curves, and the trees bend, and the waters sink and swell into waves which are the measure of its strength. But our Lord says, "Thou hearest the sound thereof." He would have us test it by the most spiritual of the senses. It whispers, or it moans, or it roars as it passes us; it has a pathos all its own. Yet what do we really know about it? "Thou canst not tell whence it cometh, and whither it goeth." Does the wind then obey no rule; is it a mere symbol of unfettered caprice? Surely not. If, as the psalmist sings, "God bringeth the winds out of his treasuries," He acts, we may be sure, here as always, whether in nature or in grace, by some law, which his own perfections impose upon His action. He may have given to us of these later times to see a very little deeper beneath the surface of the natural world than was the case with our fathers. Perchance we explain the immediate antecedents of the phenomenon; but can we explain our own explanation? The frontier of our ignorance is removed one stage farther back; but "the way of the wind" is as fitting an expression for the mysteries now as it was in the days of Solomon. We know that there is no cave of Æolus. We know that the wind is the creature of that great Master who works everywhere and incessantly by rule. But, as the wind still sweeps by us who call ourselves the children of an age of knowledge, and we endeavor to give our fullest answer to the question, "Whence it cometh, and whither it goeth?" we discover that, as the symbol of a spiritual force, of whose presence we are conscious, while we are unable to determine, with moderate confidence, either the secret principle or the range of its action, the wind is as full of meaning still as in the days of Nicodemus.