13. For thou hast possessed my reins Apparently he prosecutes the same subject, though he carries it out somewhat farther, declaring that we need not be surprised at God’s knowledge of the most secret thoughts of men, since he formed their hearts and their reins. He thus represents God as sitting king in the very reins of man, as the center of his jurisdiction, and shows it ought to be no ground of wonder that all the windings and recesses of our hearts are known to him who, when we were inclosed in our mother’s womb, saw us as clearly and perfectly as if we had stood before him in the light of mid-day. This may let us know the design with which David proceeds to speak of man’s original formation, tits scope is the same in the verse which follows, where, with some ambiguity in the terms employed, it is sufficiently clear and obvious that David means that he had been fashioned in a manner wonderful, and calculated to excite both fear and admiration, (212) so that he breaks forth into the praises of God. One great reason of the carnal security into which we fall, is our not considering how singularly we were fashioned at first by our Divine Maker. From this particular instance David is led to refer in general to all the works of God, which are just so many wonders fitted to draw our attention to him. The true and proper view to take of the works of God, as I have observed elsewhere, is that which ends in wonder. His declaration to the effect that his soul should well know these wonders, which far transcend human comprehension, means no more than that with humble and sober application he would give his attention and talents to obtaining such an apprehension of the wonderful works of God as might end in adoring the immensity of his glory. The knowledge he means, therefore, is not that which professes to comprehend what, under the name of wonders, he confesses to be incomprehensible, nor of that kind which philosophers presumptuously pretend to, as if they could solve every mystery of God, but simply that religious attention to the works of God which excites to the duty of thanksgiving.
(212) “ Fearfully and wonderfully made Never was so terse and expressive a description of the physical conformation of man given by any human being. So fearfully are we made, that there is not an action or gesture of our bodies, which does not, apparently, endanger some muscle, vein, or sinew, the rupture of which would destroy either life or health. We are so wonderfully made, that our organization infinitely surpasses, in skill, contrivance, design, and adaptation of means to ends, the most curious and complicated piece of mechanism, not only ever executed ‘by art and man’s device, but ever conceived by the human imagination.” — Warner.