30 Thou sendest forth thy spirit, they are created: and thou renewest the face of the earth.
'...it is manifest, that the ruach or spirit is all pervading. It is in heaven, in sheol, or the dust of the deepest hollow, in the uttermost depths of the sea, in the darkness, in the light, and in all things animate, and without life. It is an universal principle in the broadest, or rather, in an illimitable sense. It is the substratum of all motion, whether manifested in the diurnal and ellipsoidal revolutions of the planets, in the flux and reflux of the sea, in the storms and tempests of the expanse, or in the organism of reptiles, cattle, beasts, fish, fowls, vegetables, or men. The atmospheric expanse is charged with it; but it is not the air: plants and animals of all species breathe it; but it is not their breath: yet without it, though filled with air, they would die.
The atmosphere, which extends some forty-five miles in altitude, and encircles the globe, is styled the expanse, by Moses; and the breath of God, in Job. It is a compound body, consisting when pure of nitrogen and oxygen, in the proportion of 79 of the former to 21 of the latter, in 100 parts. These are considered as simple bodies, because they have not yet been decomposed; though it is probable they have a base, which may be ruach. This may exist free or combined with the elementary consituents of the neshemeh.
Uncombined, it is that wonderful fluid, whose explosions are heard in the thunder, whose fiery bolts overthrow the loftiest towers, and rive the sturdy monarch of the woods; and in less intensity gives polarity to light, the needle, and the brain. These three together, the oxygen, nitrogen, and electricity, constitute "the breath" and "spirit" of the lives of all God's living souls.
Thus, from the centre of the earth, and extending throughout all space in every direction, is the Ruach Elohim, the existence of which is demonstrable from the phenomena of the natural system of things. It penetrates where the neshemet el, or atmospheric air, cannot. When speaking, however, of the motivity and sustentation of organized dust, or souls, they are co-existent within them. In this case, the ruach Elohim becomes the ruach chayim, or "spirit of lives;" and the neshemet el, the neshemet chayim, or "breath of lives;" and both combined in the elaboration and support of life, the neshemet ruach chayim, or "breath of the spirit of lives."
Living creatures, or souls, are not animated, as physiologists and speculative "divines" erroneously imagine, by "a vital principle," capable of disembodied existence as the ghost of man, or the transmigrating spectres of other animal species; -- ghostly things, the laws and functions of which in the animal economy physiologists are unable to discover; and theologists are nonplussed to prove the existence of from the word of God.
On the contrary, "souls" are "made living" by the coetaneous operation of the ruach chayim and the neshemet chayim upon their organized tissues according to certain fixed laws. When the as yet occult laws of the all-pervading ruach, or spirit, shall be known, this subject will be understood; and men will then be as astonished at the ignorance of the "divines," and physiologists of this "cloudy and dark day," respecting "living souls'...
Elpis Israel 1.2.