Early Teaching of Physiology

The Creator of man has arranged the living machinery of our bodies. Every function is wonderfully and wisely made. And God has pledged Himself to keep this human machinery in healthful action if the human agent will obey His laws and cooperate with God. Every law governing the human machinery is to be considered just as truly divine in origin, in character, and in importance as the word of God. Every careless, inattentive action, any abuse put upon the Lord's wonderful mechanism by disregarding His specified laws in the human habitation, is a violation of God's law. We may behold and admire the work of God in the natural world, but the human habitation is the most wonderful.MM 221.2

From the first dawn of reason the human mind should become intelligent in regard to the physical structure. Here Jehovah has given a specimen of Himself; for man was made in the image of God. It is Satan's determined work to destroy the moral image of God in man. He would make the intelligence of man, his highest, noblest gift, the most destructive agent to pollute with sin everything he touches.—Manuscript 3, 1897.MM 221.3