Yet no one ought to suppose either that these things were written for no purpose, or that we should study only the historical truth, apart from any allegorical meanings; or, on the contrary, that they are only allegories, and that there were no such facts at all, or that, whether it be so or no, there is here no prophecy of the church. For what right-minded man will contend that books so religiously preserved during thousands of years, and transmitted by so orderly a succession, were written without an object, or that only the bare historical facts are to be considered when we read them? For, not to mention other instances, if the number of the animals entailed the construction of an ark of great size, where was the necessity of sending into it two unclean and seven clean animals of each species, when both could have been preserved in equal numbers? Or could not God, who ordered them to be preserved in order to replenish the race, restore them in the same way He had created them? But they who contend that these things never happened, but are only figures setting forth other things, in the first place suppose that there could not be a flood so great that the water should rise fifteen cubits above the highest mountains, because it is said that clouds cannot rise above the top of Mount Olympus, because it reaches the sky where there is none of that thicker atmosphere in which winds, clouds, and rains have their origin. They do not reflect that the densest element of all, earth, can exist there; or perhaps they deny that the top of the mountain is earth. Why, then, do these measurers and weighers of the elements contend that earth can be raised to those aerial altitudes, and that water cannot, while they admit that water is lighter, and liker to ascend than earth? What reason do they adduce why earth, the heavier and lower element, has for so many ages scaled to the tranquil æther, while water, the lighter, and more likely to ascend, is not suffered to do the same even for a brief space of time?