This is an illustration of how God fits every man for his place; if he means me to be Mercury—the messenger of the gods, as the ancients called him—and to travel swiftly, he will give me a strength proportioned to my day. In the formation of every planet, adapting it to its peculiar position, there is a wonderful proof of the power and forethought of God; and in a similar manner does he fit human beings for the sphere they are each called to occupy.
I like to see in Mercury a picture of the child of God who is full of grace. Mercury is always near the sun; indeed, so near that it is itself very seldom seen. I think Copernicus said that he never did see it, although he had long watched for it with great care, and he deeply regretted that he had to die without having ever seen this planet. Others have observed it, and it has been quite a treat for them to be able to watch its revolutions.
Mercury is usually lost in the rays of the sun; and that is where you and I ought to be, so close to Christ, the Sun of Righteousness, in our life and in our preaching, that the people who are trying to observe our movements can scarcely see us at all. Paul's motto must be ours—"Not I, but Christ."
Mercury, also, in consequence of being so near the sun, is apparently the least understood of any of the planets. It has, perhaps, given more trouble to the astronomers than any other member of the heavenly family; they have paid great attention to it, and tried to find out all about it; but they have had a very difficult task, for it is generally lost in the solar glory, and never seen in a dark portion of the heavens. So, I believe, brethren, that the nearer we live to Christ, the greater mystery shall we be to all mankind. The more we are lost in his brightness, the less will they be able to understand us.
If we were always what we should be, men would see in us an illustration of the text, "Ye are dead, and your life is hid with Christ in God." Like Mercury, we ought also to be so active in our appointed orbit that we should not give observers time to watch us in any one position; and next, we should be so absorbed in the glory of Christ's presence, that they would not be able to perceive us.
When Mercury is seen from the earth, it is never visible in its brightness, for its face is always turned toward the sun. I am afraid that, whenever any of us are seen very much, we usually appear only as black spots; when the preacher is very prominent in a sermon, there is always a darkness. I like gospel preaching to be all Christ, the Sun of Righteousness, and no black spot at all; nothing of ourselves, but all of the Lord Jesus. If there are any inhabitants of Mercury, the sun must appear to them four or five times as large as he does to us; the brightness would be insufferable to our eyes. It would be a very splendid sight if one could gaze upon it; and thus, the nearer you get to Christ, the more you see of him, and the more he grows in your esteem.
The next planet to Mercury is Venus; it is about 66,000,000 miles from the sun, and is a little smaller than the earth, its diameter being 7510 miles, compared with our 7975. Venus goes round the sun in 225 days, traveling at the rate of 80,000 miles an hour. When the Copernican system of astronomy was fairly launched upon the world, one of the objections to it was stated thus: "It is clear that Venus does not go round the sun, because, if it does, it must present the same aspect as the moon—namely, it must sometimes be a crescent, at other times a half-moon, or it must assume the form known as gibbous, and sometimes it must appear as a complete circle. But," said the objector, pointing to Venus, "she is always the same size; look at her, she is not at all like the moon." This was a difficulty that some of the earlier astronomers could not explain; but when Galileo was able to turn his newly made telescope to the planet, what did he discover? Why, that Venus does pass through similar phases to those of the moon! We cannot always see the whole of it enlightened, yet I suppose it is true that the light of Venus always appears about the same to us. You will perceive in a moment why that is; when the planet's face is turned toward us, it is at the greatest distance from the earth; consequently, the light that reaches us is no more than when it is closer, but has its face at least partly turned away from us. To my mind, the two facts are perfectly reconcilable; and so is it, I believe, with some of the doctrines of grace that perplex certain people. They say, "How do you make these two things agree?" I reply, "I do not know that I am bound to prove how they agree. If God had told me I would tell you; but as he has not done so, I must leave the matter where the Bible leaves it." I may not have discovered the explanation of any apparent difference between the two truths, and yet, for all that, the two things may be perfectly consistent with each other.
Venus is both the morning star and "the star of the evening, beautiful star." It has been called Lucifer, and Phosphorus, the light-bringer, and also Hesperus, the vesper star. You perhaps remember how Milton, in "Paradise Lost," refers to this double character and office of Venus:
Fairest of stars! last in the train of night,
If better thou belong not to the dawn;