Quis Rerum Divinarum Heres Sit
Philo Judaeus
The works of Philo Judaeus, the contemporary of Josephus, volume 2. Yonge, C. D., translator. London: Henry G. Bohn, 1854.
Therefore, after Moses has mentioned the facts of birds not being cut in two pieces or divided, he proceeds to say, "And the birds came down and descended upon the bodies which were divided;" [*](Genesis xv. 11. ) using indeed expressions which are synonymous, but still representing the variance which exists in the facts in a most visible manner to those who are able to see. For it is contrary to nature that birds should come down, when they have been given wings for the purpose of soaring on high.
For, as the earth is the most appropriate place for land animals, and above all for reptiles, which do not endure even to crawl upon it, but seek caves and lurking places, avoiding the regions which are above, on account of their kindred with the things which are below; so, in the same manner, the air is the appropriate abode for the winged race, the element which is by nature light is the proper home for those creatures which are light by reason of their being feathered. When, therefore, those creatures, whose nature it is to traverse the air and who ought to roam through the aether, descend and come down upon the land, they are unable to live a life according to their nature.
On the other hand, Moses approves, in no ordinary degree, of whatever reptiles are able [*](Genesis xv. 11. )
We must, therefore, think that they are full of every description of misery, which, having been brought up in the air, and in the aether which is the purest of all things, have changed their abode (not being able to bear the satiety of divine things), and have descended to that mortal and evil district, the earth. And there are innumerable imaginations concerning an innumerable variety of things which roam about upon it also; some voluntary, and some out of ignorance, which are in no respect different from winged creatures, and which Moses compares to the birds that come down.