When we consider how human beings are made, we are filled with wonder at the wisdom of the Creator that is revealed in us. Suffice it to observe the different functions of the senses which all stem from one center, the brain, and report back to it all sorts of perceptions: site, smell, taste, touch…, and also to observe the other organs of the body both internal and external; and the memory, that recalls numerous disparate elements without confusing or altering them; and the number of thoughts which do not cancel each other out but reappear at the right moment. We cannot refrain from exclaiming with the Psalmist: ‘Such knowledge is too wonderful for me, O Lord; it is high, I cannot attain it.’ [Ps. 139:6]
In fact, no one will ever succeed and explaining completely the harmony that is displayed in our bodies or the subtlety that is apparent in our souls. Innumerable thinkers have written on this point. Even so, what has been said is but a small part of what remains to be said, for human reason cannot attain to divine wisdom. So this is the Psalmist’s attitude: he praises God for what he understands but confesses himself overwhelmed by it; it is not possible for him to encompass all the marvels which are to be seen in humanity. Such an admission is in itself an appropriate hymn of praise.
THEODORET The Cure of Pagan Diseases, 5,81