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THE RAINBOW (by Rubens).
"The bow that is in the cloud on the day of rain."ToList

THE ASTRONOMY OF THE BIBLE

BOOK I

THE HEAVENLY BODIES

CHAPTER I

THE HEBREW AND ASTRONOMY

Modern astronomy began a little more than three centuries ago with the invention of the telescope and Galileo's application of it to the study of the heavenly bodies. This new instrument at once revealed to him the mountains on the moon, the satellites of Jupiter, and the spots on the sun, and brought the celestial bodies under observation in a way that no one had dreamed of before. In our view to-day, the planets of the solar system are worlds; we can examine their surfaces and judge wherein they resemble or differ from our earth. To the ancients they were but points of light; to us they are vast bodies that we have been able to measure and to weigh. The telescope has enabled us also to penetrate deep into outer space; we have learnt of other systems besides that of our own sun and its dependents, many of them far more complex; clusters and clouds of stars have been revealed to us, and mysterious nebulæ, which suggest by their forms that they are systems of suns in the making. More lately the invention of the spectroscope has informed us of the very elements which go to the composition of these numberless stars, and we can distinguish those which are in a similar condition to our sun from those differing from him. And photography has recorded for us objects too faint for mere sight to detect, even when aided by the most powerful telescope; too detailed and intricate for the most skilful hand to depict.

Galileo's friend and contemporary, Kepler, laid the foundations of another department of modern astronomy at about the same time. He studied the apparent movements of the planets until they yielded him their secret so far that he was able to express them in three simple laws, laws which, two generations later, Sir Isaac Newton demonstrated to be the outcome of one grand and simple law of universal range, the law of gravitation. Upon this law the marvellous mathematical conquests of astronomy have been based.

All these wonderful results have been attained by the free exercise of men's mental abilities, and it cannot be imagined that God would have intervened to hamper their growth in intellectual power by revealing to men facts and methods which it was within their own ability to discover for themselves. Men's mental powers have developed by their exercise; they would have been stunted had men been led to look to revelation rather than to diligent effort for the satisfaction of their curiosity. We therefore do not find any reference in the Bible to that which modern astronomy has taught us. Yet it may be noted that some expressions, appropriate at any time, have become much more appropriate, much more forcible, in the light of our present-day knowledge.

The age of astronomy which preceded the Modern, and may be called the Classical age, was almost as sharply defined in its beginning as its successor. It lasted about two thousand years, and began with the investigations into the movements of the planets made by some of the early Greek mathematicians. Classical, like Modern astronomy, had its two sides,—the instrumental and the mathematical. On the instrumental side was the invention of graduated instruments for the determination of the positions of the heavenly bodies; on the mathematical, the development of geometry and trigonometry for the interpretation of those positions when thus determined. Amongst the great names of this period are those of Eudoxus of Knidus (b.c. 408-355), and Hipparchus of Bithynia, who lived rather more than two centuries later. Under its first leaders astronomy in the Classical age began to advance rapidly, but it soon experienced a deadly blight. Men were not content to observe the heavenly bodies for what they were; they endeavoured to make them the sources of divination. The great school of Alexandria (founded about 300 b.c.), the headquarters of astronomy, became invaded by the spirit of astrology, the bastard science which has always tried—parasite-like—to suck its life from astronomy. Thus from the days of Claudius Ptolemy to the end of the Middle Ages the growth of astronomy was arrested, and it bore but little fruit.

It will be noticed that the Classical age did not commence until about the time of the completion of the last books of the Old Testament; so we do not find any reference in Holy Scripture to the astronomical achievements of that period, amongst which the first attempts to explain the apparent motions of sun, moon, stars, and planets were the most considerable.

We have a complete history of astronomy in the Modern and Classical periods, but there was an earlier astronomy, not inconsiderable in amount, of which no history is preserved. For when Eudoxus commenced his labours, the length of the year had already been determined, the equinoxes and solstices had been recognized, the ecliptic, the celestial equator, and the poles of both great circles were known, and the five principal planets were familiar objects. This Early astronomy must have had its history, its stages of development, but we can only with difficulty trace them out. It cannot have sprung into existence full-grown any more than the other sciences; it must have started from zero, and men must have slowly fought their way from one observation to another, with gradually widening conceptions, before they could bring it even to that stage of development in which it was when the observers of the Museum of Alexandria began their work.

The books of the Old Testament were written at different times during the progress of this Early age of astronomy. We should therefore naturally expect to find the astronomical allusions written from the standpoint of such scientific knowledge as had then been acquired. We cannot for a moment expect that any supernatural revelation of purely material facts would be imparted to the writers of sacred books, two or three thousand years before the progress of science had brought those facts to light, and we ought not to be surprised if expressions are occasionally used which we should not ourselves use to-day, if we were writing about the phenomena of nature from a technical point of view. It must further be borne in mind that the astronomical references are not numerous, that they occur mostly in