It is obvious that a creative act was necessary for this “expanse.”  We know of spheres that have no atmosphere; and we are so ignorant of the true nature of what is beyond the utmost reach of our air-stratum, that there is room for almost any consistent conjecture regarding it.

Moreover, observe that the atmosphere is not a chemical combination of gases, and one, therefore, that would take place like any other of the metallic, saline, or gaseous combinations, of which no detailed account is given—­all being covered by the general phrase, “God created the heaven and the earth.”  The air is a mechanical mixture, pointing to a special design and a special act of origin.  The necessary proportions of each gas and its combined properties could not have originated without guidance.

But the main purpose of the expanse, as stated in the text, was to regulate the water supply.  That vast masses of watery vapour must at one time have enveloped the globe, seems probable—­apart from revelation; and that part of this should condense into seas and fresh-water, and part remain suspended to produce all the phenomena of invisible air-moisture and visible cloud, while an “expanse” was set, so that the earth surface should be free, and that light might freely penetrate, and sound also, and that all the other regular functions of nature dependent on the existing relation of earth and air should proceed—­all this was very necessary.  And when we recollect what a balanced and complex scheme it is—­how very far from being a simple thing; we recognize in the adjustment of earth’s atmospheric envelope, a special result worthy of the day’s work.

Whether the separation between the condensed but ever re-evaporating and re-condensing water on the earth’s surface, and the water vapour in the atmosphere, is all that is meant by the division of the “waters that are above the firmament” from those below, it would not be wise to assert.  We know so little of the condition of space beyond our own air, and so little of the great stores of hydrogen which have been suggested to exist in space (and might combine to form vast quantities of liquid), that we may well leave the phrase as it stands, content with a partial explanation.

(3) “AND GOD SAID, LET THE WATERS UNDER THE HEAVEN BE GATHERED TOGETHER UNTO ONE PLACE, AND LET THE DRY LAND APPEAR:  AND IT WAS SO.  AND GOD SAID, LET THE EARTH PUT FORTH GRASS (VEGETATION), HERB YIELDING SEED, AND FRUIT TREE BEARING FRUIT AFTER ITS KIND, WHEREIN IS THE SEED THEREOF.”

The only remarks that the first part of this verse calls for, are, first, that it explains how far from mere chance-work the emergence of land from the water was; second how well it illustrates the use of terms relating to creation.

The whole scheme of the distribution of the surface of earth into land and water is one which demanded Divine foresight and a complete ideal[1] which was to be attained by the action and reaction of natural forces, just as much as the production of the most specialized form of plant-or animal-life.