It is profoundly instructive to observe that here, again, we come upon declarations and a command, the deep truth and fitness of which is only becoming clear now after three thousand years. For, as the result of our modern discoveries with regard to the constitution of the blood, and the exact nature of its functions, we in this day are able to say that it is not far from a scientific statement of the facts, when we read (ver. 14), "As to the life of all flesh, the blood thereof is all one with the life thereof." For it is in just this respect that the blood is most distinct from all other parts of the body; that, whereas it conveys and mediates nourishment to all, it is itself nourished by none; but by its myriad cells brought immediately in contact with the digested food, directly and immediately assimilates it to itself. We are compelled to say that as regards the physical life of man--which alone is signified by the original term here--it is certainly true of the blood, as of no other part of the organism, that "the life of all flesh is the blood thereof." And while it is true that, according to the text, a spiritual and moral reason is given for the prohibition of the use of blood as food, yet it is well worth noting that, as has been already remarked in another connection, the prohibition, as we are now beginning to see, had also a hygienic reason. For Dr. de Mussy, in his paper before the French Academy of Medicine already referred to,[33] calls attention to the fact that, not only did the Mosaic laws exclude from the Hebrew dietary animals "particularly liable to parasites;" but also that "it is in the blood," so rigidly prohibited by Moses as food, "that the germs or spores of infectious disease circulate." Surely no one need fear, with some expositors, lest this recognition of a sanitary intent in these laws shall hinder the recognition of their moral and spiritual purport, which in this chapter is so expressly taught. Rather should this cause us the more to wonder and admire the unity which thus appears between the demands and necessities of the physical and the moral and spiritual life; and, in the discovery of the marvellous adaptation of these ancient laws to the needs of both, to find a new confirmation of our faith in God and in His revealed Word. For thus do they appear to be laws so far beyond the wisdom of that time, and so surely beneficent in their working, that in view of this it should be easy to believe that it must indeed have been the Lord God, the Maker and Preserver of all flesh, who spake all these laws unto His servant Moses. [33] See p. 292.