Adam Clarke on Job 41:12

I will not conceal his parts - This is most certainly no just translation of the original. The Vulgate is to this effect: I will not spare him: nor yield to his powerful words, framed for the purpose of entreaty.

Mr. Good applies it to leviathan: - "I cannot be confounded at his limbs and violence;

The strength and structure of his frame."

The Creator cannot be intimidated at the most formidable of his own works: man may and should tremble; God cannot.