Charles H. Spurgeon on Psalms 139:14

Those who were skilful in Anatomy among the ancients, concluded, from the outward and inward make of a human body, that it was the work of a Being transcendently wise and powerful. As the world grew more enlightened in this art, their discoveries gave them fresh opportunities of admiring the conduct of Providence in the formation of a human body. Galen was converted by his dissections, and could not but own a Supreme Being upon a survey of this his handiwork. There are, indeed, many parts, of which the old anatomists did not know the certain use; but as they saw that most of those which they examined were adapted with admirable art to their several functions, they did not question but those whose uses they could not determine, were contrived with the same wisdom for respective ends and purposes. Since the circulation of the blood has been found out, and many other great discoveries have been made by our modern anatomists, we see new wonders in the human frame, and discern several important uses for those parts, which uses the ancients knew nothing of. In short, the body of man is such a subject as stands the utmost test of examination. Though it appears formed with the nicest wisdom upon the most superficial survey of it, it still mends upon the search, and produces our surprise and amazement in proportion as we pry into it. —The Spectator.

Verses 14-16. The subject, from Ps 139:14 and Ps 139:16 inclusive, might have been much more particularly illustrated; but we are taught, by the peculiar delicacy of expression in the Sacred Writings, to avoid, as in this case, the entering too minutely into anatomical details. —Adam Clarke.