Psalms 139:14
ESV - 14 I praise you, for I am fearfully and wonderfully made. Wonderful are your works; my soul knows it very well.
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The explanation was an excellent account of anatomy and physiology, and thus explains how "wonderfully" and intricately we have been created, but why "fearfully"?
Sandide
[Psa 139:14] All That I Am I Owe To Thee
All that I am I owe to Thee,
Thy wisdom, Lord, has fashioned me;
I give my Maker thankful praise,
Whose wondrous works my soul amaze.