Concealment does not block observation by our Creator. In this regard David said: “For you yourself produced my kidneys; you kept me screened off in the belly of my mother.

Jehovah God, who knows our deepest feelings, produced David’s kidneys. Being deep inside the body, the kidneys are among the most concealed and inaccessible organs, but God can see them. He can even look into a mother’s belly, or womb. Why, Jehovah can see into the developing embryo! Just thinking about the marvelous way in which he was formed in the womb moved David to praise his Maker. The psalmist evidently referred to the mother’s womb as “the lowest parts of the earth.” There, concealed from human view but visible to God, a baby’s bones, sinews, muscles, nerves, and blood vessels are woven together.

Before David’s body parts became distinct in his mother’s womb, his appearance was known to God. Why? Because the development of the embryo followed a specific pattern, as though obeying instructions recorded in a book. How this shows Jehovah’s wisdom and ability to see even concealed things! It should also make us appreciate that God created the human race and is responsible for the wonderful reproductive process that has resulted in our existence as individuals.

Psalm 139:13-